CHICAGO (CBS) — A man died Monday evening while being questioned by Chicago Police about a robbery in the Lawndale neighborhood on the Southwest Side, police said.

Officers responded about 8:10 p.m. to the 1600 block of South Pulaski for a man “who was being detained regarding a robbery,” according to Chicago Police.

The man became unresponsive during the investigation, police said. Emergency medical assistance was then requested.

Chicago Fire Department Cmdr. Curtis Hudson said paramedics responded to a call of a “person down from unknown causes” in the street.

The 25-year-old man was taken to Mount Sinai Hospital, where he was pronounced dead, fire officials and police said. The Cook County medical examiner’s office did not immediately provide information on the fatality.

Area Central detectives have opened a death investigation into the incident. Additional information was not immediately available.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2017. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Watch & Listen LIVE