Crews made railroad repairs in Los Angeles Monday after a train derailed near the location where thieves have been raiding cargo containers, leaving the tracks littered with emptied boxes of packaged good sent by retailers.

It wasn't immediately clear if the derailment that happened Saturday was caused by the debris left behind by thieves in the Lincoln Heights area near downtown Los Angeles. Union Pacific said the cause of the derailment was under investigation.

More Images
A train passes by as shredded boxes and packages at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Crews made railroad repairs in Los Angeles Monday after a train derailed near the location where thieves have been raiding cargo containers, leaving the tracks littered with emptied boxes of packaged good sent by retailers.

Contractor worker Luis Rosas removes vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Cargo containers aboard trains have been targeted by thieves for months, authorities said. The stolen packages are from retailers including Amazon, REI and others, the CBSLA television newscast reported last Thursday.

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Amazon said it was directing inquiries to police. The United Parcel Service declined to comment on investigations into the cargo thefts but said the company was cooperating with authorities.

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

The derailment caused 17 train cars to go off the tracks, Union Pacific said in a statement. No injuries were reported.

A train passes by as shredded boxes and packages at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

A train passes by as shredded boxes and packages at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Cargo containers aboard trains have been targeted by thieves for months, authorities said. The stolen packages are from retailers including Amazon, REI and others, the CBSLA television newscast reported last Thursday.

Union Pacific said in a statement to CBSLA that the railroad was concerned about increased cargo thefts in California.

“We have increased the number of Union Pacific special agents on patrol, and we have utilized and explored additional technologies to help us combat this criminal activity. We also will continue to work with our local law enforcement partners and elected leaders,” the railroad company said.

Contractor worker Luis Rosas removes vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor worker Luis Rosas removes vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Amazon said it was directing inquiries to police. The United Parcel Service declined to comment on investigations into the cargo thefts but said the company was cooperating with authorities.

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Contractor workers Adam Rodriguez, front, and Luis Rosas pick up vehicle tires from the shredded boxes and packages along a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)

Shredded boxes and packages and debris are strewn along at a section of the Union Pacific train tracks in downtown Los Angeles Friday, Jan. 14, 2022. Thieves have been raiding cargo containers aboard trains nearing downtown Los Angeles for months, leaving the tracks blanketed with discarded packages. The sea of debris left behind included items that the thieves apparently didn't think were valuable enough to take, CBSLA reported Thursday. (AP PhotoRingo H.W. Chiu)