DECORUM, Pa. (AP) _ A bus slammed into a tractor-trailer parked along the Pennsylvania Turnpike early today, killing seven people and injuring at least 15.

The Greyhound bus, carrying 22 people, was headed to Pittsburgh from New York City when it hit the truck about 4:20 a.m., state police Cpl. John Cypress said.

The truck was pulled off the road into a parking area on the west side of the Tuscarora Tunnel, between Franklin and Huntingdon counties, about 130 miles west of Philadelphia.

Details of the crash were not immediately known, and names of the dead and injured were unavailable. Police said the bus driver was among those killed.