The Washington Department of Ecology, U.S. Coast Guard and other agencies are continuing to monitor clean-up at Shelter Bay Marina after a fire early Friday evening that caused seven boats to sink and damaged others, many of them filled with diesel fuel.
The Department of Ecology estimates that up to 2,400 gallons of oil has spilled at Shelter Bay Marina.
The Spill Response Team said it could take days to clean up the marina.
Three layers of oil containment boom and absorbent are being used to help reduce the spread of pollution.
The Swinomish Police Department and Skagit County Fire Department are conducting a joint investigation into the cause of the fire.
A crane was being used to raise the destroyed and/or damaged boats and place them on a barge. They will be taken to a location where they can be examined.