Unalaska, AK – A large fish processing vessel is being towed to Dutch Harbor by a Coast Guard cutter this evening following an engine room fire Tuesday night.

The 316-foot Stellar Sea was on its way from Seattle to St. Paul Island when the fire broke out at about 10:20 p.m. Tuesday. According to the Coast Guard, the fire was extinguished within an hour and there weren't any injuries or fatalities, but the ship is currently without power, propulsion or steering. The vessel has 142 people on board.

The Coast Guard cutter Mellon, which was on patrol in the Bering Sea, was diverted to monitor the Stellar Sea shortly after the incident happened, 90 miles north of Dutch Harbor. It has since taken the fishing vessel in tow towards Dutch Harbor, and expects to hand the damaged ship off to the tugboat James Dunlap at about 7 p.m. this evening.

Coast Guard Petty Officer Sara Francis said that officers from the Dutch Harbor marine safety detachment will investigate the incident when the ship arrives in port.

"We're doing an investigation to help determine what the origin is, but as of now we're not certain," she said. "Because fires are particularly destructive, we will be requiring post-casualty drug and alcohol testing, but that's standard procedure."

The Coast Guard conducts drug and alcohol testing after any incident that results in more than $100,000 damage. No time of arrival in Dutch Harbor has been announced yet.