BANGOR — Police working the early shift today at the Bangor Police Department got quite a surprise.

Officers reported hearing a loud explosion from the boiler room at about 6:40 a.m. and seeing a plume of smoke coming from a roof vent.

The building was evacuated and the fire department was called.

The fire department accessed the boiler room and within a minute deemed the building safe to re-enter.

There was no damage to the boiler room. It appears there was some sort of malfunction with the boiler when it turned on. It will be inspected.

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