PRINCE FREDERICK, Md. - Fire officials say four people, including a firefighter, have been injured in a blaze in Prince Frederick in Calvert County.

The fire was reported Thursday about 8:40 p.m. in a trailer on Hollowing Lane. About 55 firefighters battled the two-alarm blaze.

Two people were flown to Johns Hopkins Bayview Burn Center in Baltimore; another was taken to Calvert Memorial Hospital. A firefighter was treated at the scene for a minor injury.

The cause of the fire is under investigation.

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