A four-vehicle crash is causing delays Tuesday morning along Interstate 78 in Lehigh County.

The crash happened about 9:40 a.m. on I-78 eastbound near the exit for Route 100 in Upper Macungie Township, according to 511pa.com, PennDOT’s traffic site. A lane is restricted, and traffic is listed as stopped heading into the area of the crash.

Trooper Nathan Branosky, a state police spokesman, said troopers are at the scene of the crash, and delays should be expected.

Check back later for updates.