An explosion that shook part of the city in May was caused when discarded smoking materials started a fire near a propane tank, according to officials. The fire went on to destroy two apartment buildings.
Investigators with the Bangor Fire Department, Bangor Police, and the state Fire Marshal's office have been poring over evidence this morning following a garage fire in Bangor last evening.
Sgt. Tim York says last evening's fire on Lincoln street was deliberately set.