An off-duty Chicago police officer exchanged gunfire with two assailants early Sunday in Washington Park on the South Side.
The officer was confronted by two gunman about 1:50 a.m. in the 100 block of East 57th Street and all three fired, though the officer wasn't injured and the gunmen fled, Chicago police said.
Police did not say who fired first. The officer initially exchanged gunfire with one person before a second gunman also opened fire on the officer. Both gunmen then fled.
No injuries were reported, according to police.
The Civilian Office of Police Accountability is investigating.
