CHICAGO (CBS) — Two people were in custody Thursday morning after Chicago Police officers witnessed a shooting and exchanged gunfire with the suspects in the West Pullman neighborhood on the Far South Side.

Officers responding to an unrelated call at 2:40 a.m. heard gunshots from at least two different types of weapons in the 11800 block of South Lowe, according to police. The officers saw people inside a vehicle firing at a group of individuals in that block.

When the officers announced themselves and began to intervene, the people in the vehicle fired at the officers, police said. One of the officers returned fire, but no one was struck.

The vehicle drove away westbound on 119th and later crashed in the 4400 block of West 119th Street in Alsip, police said. Three people got out of the vehicle and ran away. Two of them were caught and were being questioned by Area South detectives, while police were still searching for the third suspect Thursday morning.

Further investigation revealed that a 22-year-old man was shot in the leg and was taken to Christ Medical Center in Oak Lawn, where his condition was stabilized, police said.

Independent Police Review Authority Chief Sharon Fairley, who responded to the scene of the shooting shortly after 4:30 a.m., confirmed that shots were fired by police at that location. When asked whether anyone was struck by police gunfire, she said, “Not as far as we know.”

She declined to comment further, citing an ongoing investigation.

Lowe was blocked off between 118th and 119th streets and 119th was closed between Wallace and Union as police investigated.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2016. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)