Crews battle heavy smoke in building fire in Upper Gwynedd Twp.

UPPER GWYNEDD TWP., Pa. (WPVI) -- Thick, black smoke billowed into the air as flames erupted in a building in Montgomery County Tuesday afternoon.

It happened just after 4:30 p.m. along the 500 block of Church Road in Upper Gwynedd Township.

The building appeared to be in the process of being demolished when it caught fire.

There were no injuries reported.

The cause of the blaze is under investigation.