Emergency responders have placed containment and absorbent booms near a tugboat that sank in southeast Alaska.
The Alaska Department of Environmental Conservation says the Powhatan, owned by Samson Tug and Barge, sank Wednesday night while docked at Staffigavan Bay about 7 miles (11 kilometers) north of Sitka.
The tug after it sank shifted downslope 1,083 feet (330 meters), moving from a depth of 49 feet (15 meters) to 197 feet (60 meters). Divers confirmed the location.
Samson estimates the tug carried 325 gallons of lube oil, 12 gallons of diesel and possibly sludge. Neither the amount released nor the cause of the sinking is known.
The DEC says a spill could affect salmon fry and herring larvae.
