The mother and grandmother of a missing 15-month-old girl are now in the same Tennessee jail after giving conflicting accounts about the toddler's disappearance.

Authorities frustrated by their multiple versions of what happened to Evelyn Mae Boswell announced Wednesday that they'll hold an afternoon news conference on developments in the case, which prompted an Amber Alert after she was reported missing on Feb. 18, at least seven weeks after she was last seen.

The girl's 18-year-old mother, Megan Boswell, is in the Sullivan County Jail on a charge of filing a false police report. Her mother, Angela Boswell, is being held there as well, on charges of theft and violating probation in an earlier case.

In this Monday, Feb. 24, 2020, photo, Angela Boswell appears in Wilkes County District Court in Wilkesboro, N.C. Boswell is the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert. The child's grandmother, Angela Boswell, and her boyfriend, William McCloud, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said.  (Brianna PaciorkaKnoxville News Sentinel via AP)

In this Monday, Feb. 24, 2020, photo, Angela Boswell appears in Wilkes County District Court in Wilkesboro, N.C. Boswell is the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert. The child's grandmother, Angela Boswell, and her boyfriend, William McCloud, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said. (Brianna PaciorkaKnoxville News Sentinel via AP)

One version Megan Boswell has repeated is that her mother took her daughter to a campground in Mendota, Virginia; authorities then searched multiple campgrounds in that area and found no sign of the girl, WJHL-TV reported.

Angela Boswell and her boyfriend, William McCloud, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance. Before she was returned to Tennessee, Boswell told the judge she wanted to go home and resolve the situation with her granddaughter, news outlets reported.

Boswell was returned to the Sullivan County jail on Monday evening and arraigned on Tuesday on a theft charge, news outlets reported. The judge set her bond at $5,000 in the case, but Sullivan County Sheriff's Capt. Andy Seabolt said she will remain incarcerated because a bondsman revoked her bond in another, unrelated case.

In this Monday, Feb. 24, 2020, photo, William McCloud appears in Wilkes County District Court in Wilkesboro, N.C. McCloud and his girlfriend Angela Boswell, the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said.(Brianna PaciorkaKnoxville News Sentinel via AP)

In this Monday, Feb. 24, 2020, photo, William McCloud appears in Wilkes County District Court in Wilkesboro, N.C. McCloud and his girlfriend Angela Boswell, the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said.(Brianna PaciorkaKnoxville News Sentinel via AP)

Megan Boswell joined her mother at the jail Tuesday night, and her bond was set at $25,000, the sheriff's office said.

The Tennessee Bureau of Investigation, meanwhile, said there are so many unanswered questions that it decided to post a video addressing what they don't know.

The TBI said McCloud and Boswell are “believed to have information” regarding the girl's whereabouts. The agency also said that while the Amber Alert said Evelyn Mae was last seen on Dec. 26, they can't be sure of the date because of the mother and grandmother's conflicting accounts.

In this Monday, Feb. 24, 2020, photo, Angela Boswell appears in Wilkes County District Court in Wilkesboro, N.C. Boswell is the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert. The child's grandmother, Angela Boswell, and her boyfriend, William McCloud, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said.  (Brianna PaciorkaKnoxville News Sentinel via AP)

In this Monday, Feb. 24, 2020, photo, Angela Boswell appears in Wilkes County District Court in Wilkesboro, N.C. Boswell is the grandmother of Evelyn Mae Boswell, a 15-month-old Tennessee girl who is the subject of an Amber Alert. The child's grandmother, Angela Boswell, and her boyfriend, William McCloud, were arrested last week in North Carolina on fugitive warrants unrelated to the toddler's disappearance, Wilkes County Sheriff's Lt. Logan Kerr said. (Brianna PaciorkaKnoxville News Sentinel via AP)

The Bristol Herald Courier reported that the Amber Alert was issued after the sheriff's office received a Tennessee Department of Children’s Services referral saying family members hadn't seen the baby in about two months. The baby's great-grandfather, David Jones, told the newspaper that he hadn't seen the baby since about a week before Thanksgiving.

This February 2020 booking photo from the Tennessee Bureau of Investigation shows Megan Boswell. The teen mother of a 15-month-old Tennessee girl, who is the subject of an Amber Alert, is being held on a false report charge, according to the Sullivan County Sheriff's Office.  (Tennessee Bureau of Investigation via AP)

This February 2020 booking photo from the Tennessee Bureau of Investigation shows Megan Boswell. The teen mother of a 15-month-old Tennessee girl, who is the subject of an Amber Alert, is being held on a false report charge, according to the Sullivan County Sheriff's Office. (Tennessee Bureau of Investigation via AP)