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.

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

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

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