The State Fire Marshal's Office is investigating the Friday fire that devastated businesses along Custom House Wharf in Old Port.

ORIGINAL STORY: A massive fire has broken out in Portland, Maine, according to local alert pages. Videos shared on social media showed heavy flames and thick smoke rising from the waterfront.

PITTSFIELD, Maine — The fire marshal is investigating a fire at a Pittsfield home that killed two dogs Friday morning.

Fire investigators said they believe an explosion preceded the Monday night fire and are continuing to investigate the cause.

The fire began at the Outback Garage in Patten early Wednesday morning, authorities said, and spread to an adjacent apartment building.

PALERMO, Maine — A raging fire at a home in a northern New England town late Monday night left one person critically injured and another unaccounted for, authorities said.

A massive fire in the Old Port of Portland, Maine, on Friday night destroyed a building and damaged multiple businesses. Several popular area restaurants were also forced to close due to the size and impact of the blaze.