A contractor working in Bethesda was struck and killed Wednesday afternoon by a vehicle, police said.

Montgomery police were called to the incident on the 5300 block of Albemarle Street around 2:20 p.m., said Officer Rebecca Innocenti, a police spokeswoman.

Concepcion Zavala, who lived in the District, was working on a house when he noticed his 2000 Chevrolet Silverado began rolling down Albermale Street. He had parked it on the street hours earlier, police said.

Zavala tried to the stop the unoccupied truck, but the vehicle continued moving, police said. When the truck stopped along a stone wall, Zavala was pinned between the stone and the driver’s door.

He was pronounced dead at the scene.