Fire officials say they are looking into what caused a fire to break out Saturday morning inside a building in Crown Heights.

Officials say they were called to the four-story building at 667 Classon Ave. just before 7 a.m. Saturday. They say the fire was placed under control around 7:15 a.m. but smoke could still be seen erupting from the second floor of the building as firefighters put out the blaze.

No one was reported injured.