The fire started just before 1 p.m. near the top floor of a six-story building on Montgomery Avenue in Morris Heights.
Firefighters battled the fire from inside and on the roof.
This was the view from ground level via reporter Kemberly Richardson:
#Bronx 5 alarm fire, what was happening at building right before flames raced across top floor? More at 5 @ABC7NY pic.twitter.com/ur7OG2VSmg
— Kemberly Richardson (@kemrichardson7) November 30, 2015
In all, 11 apartments were damaged. No one was hurt.