An alleged trespasser was badly hurt Tuesday when a demolition crew razed a trailer in Michigan without knowing the man was inside.

The crew stopped working on the property in Pontiac after the workers heard screams coming from the pile of rubble, The Detroit News reported. The injured man was identified only as a 59-year-old.

The man suffered a few broken bones and a deep laceration to his head, the report said. He was treated at a nearby hospital.

The construction workers reportedly had given several warnings to people who lived in the area, telling them to avoid the property.

The city had hired the crew to clear abandoned homes. Workers first moved the trailer so it could be crushed and loaded onto a truck.

Pontiac is about 30 miles northwest of Detroit.

Click for more from Fox 2.

The Associated Press contributed to this report.