Driver killed after crash on I-78 at Rt. 309 in Upper Saucon Township, Pa.

UPPER SAUCON TWP., Pa. (WPVI) -- A driver was killed on Interstate 78 in the Lehigh Valley early Monday morning.

The coroner responded to the crash on I-78 at Route 309 in Upper Saucon Township at 1 a.m.

Police say the driver crashed into a concrete pillar and was trapped for an extended period of time.

It is unclear what caused that person to veer off the highway.

The driver's identity has not yet been released by police. The crash is under investigation.