A Westhampton man with a previous conviction for drunken driving was charged with felony DWI after the car he was driving rear-ended a Mastic Beach Fire Department vehicle Wednesday night on the Yaphank-North Bellport border, injuring two firefighters, Suffolk County police said.

Robert March, 51, of Seabreeze Avenue, was arrested and charged with driving while intoxicated with a previous conviction after being transported to Brookhaven Memorial Hospital Medical Center in East Patchogue for treatment of unspecified injuries.

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Arraignment details were not immediately available.

Police and fire officials said the firefighters, whose names were not released, were in a Mastic Beach Fire Department van that had been stopped at a light at Yaphank Avenue and Horseblock Road and was pulling away after the light changed when it was rear-ended by a 1994 Buick sedan driven by March. The crash occurred at about 9 p.m.

Photos from the scene showed the front end of the Buick smashed, its front windshield shattered and air bags deployed.

Officials said that moments before the crash the van had exited the Firematic Training Center at the Suffolk County Fire Academy on Yaphank Avenue.

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Suffolk fire officials said South Country Ambulance also took the injured firefighters to Brookhaven Memorial Hospital Medical Center for treatment of unspecified injuries.