Three boats went up in flames overnight at the Columbia Island Marina.
The fire broke out about 1 a.m. Monday.
D.C. fireboats attacked the blaze from the water, while Arlington County firefighters helped from the ground. There was some damage to the docks, but no one was hurt.
The Columbia Island Marina is located in the Lyndon B. Johnson Memorial Grove, between Boundary Channel and the Potomac River.
The cause of the fire is not yet known. D.C. Fire is investigating.
After the blaze, officials shared these fire safety tips for boaters, noting that fires that break…