No one was injured in a fire that destroyed a boat Tuesday morning in Cornet Bay.

At 8:47 a.m., North Whidbey Fire and Rescue was called to respond to a burning boat at the Deception Pass Marina that a local resident saw from his house.

No passengers were on board of the vessel, according to Chief Chris Swiger, who was among the first responders on the scene.

What led the 1986 34-foot Bayliner to catch fire remains unknown, Swiger said. The cause has been listed as “undetermined.”

The vessel, which was secured to a dock, burned for over an hour as North Whidbey firefighters tamed the flames assisted by the Mount Erie Fire Department, NAS Whidbey Island Fire Station 71 and boats from the Swinomish Fish and Wildlife Service, the Skagit County Sheriff and the Everett Fire Department.

As fire officers extinguished the fire, the mooring lines burned and broke, causing the boat to drift away, Swiger said. Due to the boat’s location, firefighters had limited space to move around. They also couldn’t wear life jackets due to their flammability, but the self-containing breathing apparatus can help officers float for a short amount of time in case they accidentally fall in, he said.

Since there are no standpipes on the dock, responders had to stretch the hose lines from the trucks on shore, which Swiger said made the effort a little more challenging. Despite being surrounded by water, the chief said pumping water directly from the sea would have been impractical and time consuming. The salt, he added, would have damaged the pumps and the pipes in the trucks.

The Swinomish boat towed it to a piling, where the Bayliner eventually sank and was left sitting semi-submerged as it waited to be moved away, Swiger said. The 20 gallons of fuel in the tank all burned in the fire, resulting in no leaks.

A few nearby boats were scorched, though they showed minimal damage. Had the boat been under the boathouse, Swiger said, the situation could have turned into a “disaster.”