MORRISVILLE, Pa. (CBS) – One person was killed and two others injured in a fatal multi-vehicle accident in Bucks County Sunday morning.

The accident happened a little before 4 a.m. on Route 1 northbound near Route 32 in Morrisville.

One victim was pronounced dead at the scene. The two other victims were transported to St. Mary’s Hospital, according to authorities. There is no word on their condition at this time.

Police say the two cars collided, although it is not clear at this time what caused the collision.

Route 1 northbound was shut down between Route 13 and Route 32 due to police activity.

Falls Township Police are investigating.