Authorities are investigating the cause of a fire on Rikers Island that forced more than 240 inmates from their cells Sunday night.
Flames broke out just after 8 p.m. in an air conditioning room.
It took firefighters three hours to bring the two-alarm fire under control.
Four firefighters suffered minor injuries.
The Department of Correction said the inmates were moved to other cells in other jails on Rikers and all were accounted for.
None of the inmates or staff were injured.