The engine was parked on the second story of the garage about 10:40 a.m. when part of the parking deck collapsed underneath it in the 2400 block of East South Shore Avenue, according to Chicago Fire Department spokesman Larry Langford and Chicago police.
No cars on the lower level appeared to be damaged and no one was trapped beneath it, authorities said.
“It was very quick. It was a sudden concrete collapse failure,” CFD Chief of Special Operations Tim Walsh said in a news conference. “They heard a loud crash and the engine fell into the hole.”