An early morning fire destroyed four yachts at the Washington Yacht Club in Southeast D.C., but no one was injured, fire officials said.

Firefighters were called to the marina on the Anacostia River around 4:45 a.m. after a passing motorist on the 11th Street Bridge noticed the fire, said Pete Piringer, a D.C. Fire Department spokesman.

The blaze started in one of the boats, which were described as 35-40 foot cabin cruisers, and spread to the others, Piringer said. All four of the yachts were a total loss and three partially sunk, Piringer said. The fire also damaged part of the marina’s B dock.

Piringer said losses could total more than $1 million, but it was still too early to put an exact dollar figure on the fire.

Firefighters evacuated a number of boats in the marina and moved others, so they would not catch on fire, Piringer said. About 50 firefighters and a fireboat battled the blaze.

Firefighters put up booms in the river to contain fuel and debris from the damaged boats, Piringer said. The cause of the fire is still under investigation, but Piringer said early indications are that it appeared to be accidental.

The yacht club is located in the 1500 block of M Street in SE D.C.