BROOKLYN - Ten people, including four firefighters, were injured after a four-alarm fire ripped through a Brooklyn apartment building. 

It happened on Hancock Street in Bed-Stuy around 10 p.m. Tuesday.

FDNY officials say the fire started inside the walls of a bottom-floor apartment and quickly spread to four other apartments above. 

Four firefighters and six people were taken to the hospital with minor injuries and are expected to be OK, according to officials. 

The FDNY says it is still investigating the cause of the fire.