State police in Washington County confiscated about 335 pounds of marijuana from an unattended truck tractor in South Strabane yesterday afternoon.

The marijuana was discovered in the sleeper berth of a 2004 Freightliner tractor around 4:30 p.m., police said. The tractor was apparently left unattended on Route 70 eastbound at Exit 19A. It had a Florida license plate.

Police were searching for the operator of the vehicle last night.