Expect major traffic delays in the area of Old Bridge on the Garden State Parkway Sunday morning, as State Police investigate a fatal accident.

As of 9:25 a.m., all southbound express lanes remained closed, according to the latest Tweets and Facebook posts from State Police.

UPDATE: At 9:48 a.m., the New Jersey Department of Transportation reported only that the right lane was blocked.

The accident occurred at mile post 122.3.

News 12 reports a car rolled over, killing one person inside and injuring another.