Bangor firefighters are investigating an early morning fire on Third Street. It happened just before 1am Thursday at a 5-unit apartment building. Someone called the department, saying there was heavy black smoke coming from the building. When fire crews got inside, we’re told there was fire in one of the units. ” It displaced a total of five people out of this apartment. All of them have been put up with family and friends that live in the area,” said Assistant Fire Chief, Rick Cheverie. There’s a lot of damage to one apartment, but the others only have some smoke damage. No one was hurt.