CHICAGO (CBS)– A 19-year-old and a 56-year-old were injured during a shooting in Lawndale, according to Chicago police.

The two men were struck by “unknown gunfire” in the 3900 block of west Lexington Street Saturday night.

The 19-year-old victim was struck in the head and is now at Stroger Hospital in critical condition. The 56-year-old was transported to Mt. Sinai Hospital in good condition.

Police said three persons of interest are being questioned.

Area North Detectives are investigating.