An investigation is underway after a vacant home went up in flames Sunday morning in Mercer County.

The flames broke out at the home on Longview Road in West Middlesex around 2:00 AM.

Multiple departments from Hermitage, Shenango Township and West Middlesex were all called in to battle the fire.

Crews tell 21 News the home was vacant but was still filled with a lot of stuff that kept it burning for a few hours.  Police and fire are now investigating the cause.