Firefighters battle blaze at indoor shooting range in Horsham, Pa.

HORSHAM, Pa. (WPVI) -- Firefighters in Montgomery County battled a blaze at an indoor shooting range.

The fire broke out around 2:25 p.m. at Clayton's Indoor Shooting Range on the 600 block of Easton Road in Horsham.

Chopper 6 was overhead as crews worked to contain the flames.

Firefighters battle blaze at indoor shooting range

Officials told Action News that crews were initially dispatched for a fire in the HVAC unit, but a cause has not yet been determined.

No injuries were reported.