CRANBERRY TOWNSHIP, Pa. (KDKA) – A stretch of I-79 was shut down after a deadly accident in Butler County.

Dispatchers confirmed I-79 was temporarily shut down between exits 78 through 85.

KDKA’s Shelby Cassesse spoke to state police, who say one woman died at the scene.

She was later identified as 41-year-old Cristi Reibert.

Police say they believe the vehicle was going a high speed when it hit a cement structure in the median.

Police say they believe the vehicle was going north and drove off the left side of the road before rolling over numerous times.

WATCH: Woman Identified In Crash On I-79

The vehicle came to rest of the southbound side of I-79.

The driver was ejected from the car.

State police say early signs show she was not wearing a seatbelt.

The crash caused debris to scatter on both the north and south lanes. Traffic was heavily backed up during rush hour.

The southbound lanes reopened around 6:45 p.m.