BROOKLYN - Three people were hurt after a four-story building collapsed in Bed-Stuy Tuesday afternoon.

It happened at 1438 Fulton St. at around 2:30 p.m. Reports say the building was vacant.

Witnesses say they heard a loud boom, and then the vacant building collapsed.

The three people who were injured were walking around the perimeter of the building when it collapsed. They were all taken to local hospitals with minor injuries.

The cause of the collapse is still under investigation.