Nortbound lanes of Route 33 were closed Thursday afternoon because of an accident in Plainfield Township, Northampton County.

The accident, which involved a dump truck and another vehicle, occured at 2:45 p.m. Thursday at mile market 17.

There was one known injury.

Pennsylvania State Police were on the scene.

By 4 p.m. Thursday, the accident had been cleared and the northbound lanes reopened.