BROOKLYN, NY – Four New York City firefighters sustained non-life-threatening injuries while battling a three-alarm fire at 7902 16th Avenue in Brooklyn on Wednesday.

The incident was reported at around 11:39 a.m. Wednesday at a commercial building at 7902 16th Ave., according to the FDNY Fire Department. By 1 pm, the fire was upgraded to a three-alarm fire. The cause was not immediately known and is under investigation by the New York Fire Department.