Witnesses report a fuel slick can be seen on the water. There was nobody aboard the boat at the time of the sinking.
The coast guard and other officials are on the scene assessing the situation, according to spokesman Dan Bate.
"Currently crews are en route to Squamish with booms and absorbents to contain whatever fuel they can. Initial reports suggest pollution has spread to an area in the channel and crews will assess their next steps once they are on scene."
Also on HuffPost