By CBS3 Staff

BETHLEHEM, Pa. (CBS) – Authorities are investigating after flames broke out overnight at a church in Bethlehem. The fire started around 12:15 a.m. Tuesday at Iglesia Pentecostal of Bethlehem.

Black smoke could be seen coming from the building on the 1000 block of Pembroke Road.

The fire grew to two alarms, before firefighters could get it under control.

ATF investigators brought an arson dog to the scene to investigate.

No one was hurt, but several rooms sustained heavy smoke damage.