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(WUSA9) -- A deputy had to be flown from the scene of a traffic stop after he was struck by a passing car's mirror, say Frederick County Sheriff's Office authorities.

According to authorities, at approximately 10:13 p.m. Wednesday, DFC Greg Morton spotted a vehicle driving erratically on Route 144 in the area of the Monocacy River. He conducted a traffic stop and later placed the female driver in custody for an emergency evaluation, say authorities. Then, as the deputy was placing the woman in his cruiser for transport to a hospital, a passing vehicle's mirror struck him.

Authorities say the striking vehicle stopped at the scene and cooperated with investigators.

As for DFC Morton, he was transported to R Adams Cowley Shock Trauma Center in Baltimore by a Maryland State Police helicopter, according to authorities. He was released from the hospital on Thursday morning and is now recovering at home, say authorities.

Morton has been with the agency since December 2010.