CHARLTON (AP) — A Massachusetts State Police trooper who once worked at the barracks in Northampton has died of injuries suffered in an accident on the Massachusetts Turnpike.

Forty-four-year-old Thomas Clardy died Wednesday.

Police said Clardy had stopped a car for a traffic violation when his cruiser was hit by another vehicle around noon in Charlton.

Clardy was taken to UMass Memorial Medical Center, where he was pronounced dead.

Police said 30-year-old David Njuguna, of Webster, is charged by criminal summons with negligent operation of a motor vehicle and a marked lanes violation. Njuguna was hospitalized with serious injuries.

Clardy, a veteran of the United States Marine Corps, joined the state police in 2005 and had worked in the Northampton, Sturbridge, Brookfield and Charlton barracks.

He leaves a wife and six children.

Republican Gov. Charlie Baker said in a statement he was saddened to learn of Clardy’s death.