A 50-year-old man suffered second-degree burns over 20 percent of his body when he was caught in a Memorial Day flash fire while working on a boat in Anne Arundel County.

The man was trying to repair a boat motor in the Mayo Ridge Marina in the Edgewater area at 11:10 a.m. Monday when an explosion occurred, Anne Arundel County Fire Captain Michael Pfaltzgraff said.

The man, who was not identified, was flown by a medical evacuation unit to the Burn Center at Johns Hopkins Bayview Medical Center.

mary.mccauley@baltsun.com