It happened around 11 p.m. Monday along Highway 301 near Interstate 295.
State troopers said a Mercedes was going north down the highway when it plowed into a pole and rolled over.
One of the people in the car died at the scene, while the other two people were taken to the hospital in unknown condition.
The cause of the accident is also unknown at this time.
Highway 301 had to be shut down for a while as authorities cleared the scene.