An unknown quantity of the fuel leaked from the Pathfinder tug after it ran aground Wednesday on Bligh Reef. The boat's owners were pumping the remaining diesel from the original 33,500 gallons (127,000 liters) in its tanks.
Flyovers by a C-130 cargo plane and helicopters revealed "a light grey or silver diesel sheen spanning an area approximately three miles (five kilometers) long and 30 yards (meters) wide approximately one mile east of Glacier Island," the Coast Guard said on its website.
The tug had been scouting shipping lanes for ice when it struck the same rock that did for the Exxon Valdez on March 24, 1989, spilling 11 million gallons of crude into the sea in the worst US oil disaster. Read more.