3-alarm fire damages commercial building in Allentown, Pa.

ALLENTOWN, Pa. (WPVI) -- A multi-alarm fire tore through a commercial building in Allentown, Pennsylvania, on Thursday night.

The flames broke out just before 8 p.m. on the 1100 block of North Irving Street.

The fire went to three alarms before being placed under control.

No injuries have been reported.

The cause of the fire remains under investigation.