South Boston police are investigating a Sunday night shooting that injured a 19-year-old after a string of gunfire-related calls the evening before.

Officers were sent to Sentara Halifax Regional Hospital for a report of someone with a gunshot wound, according to a news release. An officer talked with a 19-year-old South Boston man who was shot in the leg.

Authorities say they were provided “conflicting accounts” on how the shooting happened, but believe it occurred near Gygax Avenue in South Boston. The injury was not life-threatening, police reported.

“Witnesses reported hearing around six shots during the timeframe of this incident,” police wrote in the release.

This follows another shots-fired call police investigated Thursday evening on Gygax Avenue where they found a cartridge case. Hours before that call, a 33-year-old man showed up at the emergency room after he said he was shot in the 2100 block of North Main Street. In that shooting, the man also was hit in the leg. He was treated and released from the hospital.

On Saturday night, the 911 center fielded three calls after residents heard the sounds of gunfire.

The first, reported at about 9:10 p.m., was in the area of Estes Street. The next call came in shortly before 9:30 p.m. in the area of College and Llewellyn Streets. A third call, at about 11:30 p.m., reported shots fired in the area of Harris Drive.

In each instance, police were unable to find any evidence of a shooting.

Anyone with information is asked to call the South Boston Police Department at 434-575-7273 or the Halifax County Crime Line at 434-476-8445.