A shooting in St. Louis left three people dead and four others wounded, authorities said.

Police were called about 7:30 p.m. Monday to the city's Greater Ville neighborhood in north St. Louis. Two men were found dead outside a convenience store, police Chief John Hayden said. A third collapsed and died in the courtyard of an elementary school.

Police on Tuesday identified the men killed as 40-year-old Kevin Page, 31-year-old Charlie Anderson and 44-year-old O.J. Pernell. Four more shooting victims were hospitalized with gunshot wounds, including two listed in critical but stable condition.

A St. Louis police officer walks past an evidence marker near the scene of a fatal shooting, on Monday, June 21, 2021, in the Greater Ville neighborhood, in north St. Louis. (Daniel ShularSt. Louis Post-Dispatch via AP)

A St. Louis police officer walks past an evidence marker near the scene of a fatal shooting, on Monday, June 21, 2021, in the Greater Ville neighborhood, in north St. Louis. (Daniel ShularSt. Louis Post-Dispatch via AP)

Investigators were still trying to determine what led to the shooting, Hayden said.

St. Louis saw a near-record number of killings last year, with 262, and is on about the same pace in 2021. The city has ranked among the deadliest in the U.S. for many years. The shooting comes amid fears about a spike in U.S. gun violence heading into the summer.

A St. Louis police officer conducting crowd control tries to keep people from entering the crime scene where officers and crime lab investigators covered the body of a shooting victim on the courtyard of Farragut Elementary School on Monday, June 21, 2021, in the Greater Ville neighborhood in north St. Louis. (Daniel ShularSt. Louis Post-Dispatch via AP)

A St. Louis police officer conducting crowd control tries to keep people from entering the crime scene where officers and crime lab investigators covered the body of a shooting victim on the courtyard of Farragut Elementary School on Monday, June 21, 2021, in the Greater Ville neighborhood in north St. Louis. (Daniel ShularSt. Louis Post-Dispatch via AP)