Three firefighters killed battling blaze in vacant Baltimore home

City's fire chief says a fourth firefighter was also injured, when part of a vacant home collapsed amid fire

Three Baltimore firefighters were killed and a fourth injured when part of a vacant home collapsed while they were battling a blaze early on Monday, the city's fire chief said.

The Baltimore city fire department said in a tweet firefighters were responding to a blaze at the three-story rowhome when the four were trapped inside. Crews removed piles of debris to locate the firefighters, the department said.