SANFORD – Police say a 25-year-old passenger in one of three cars involved in an accident Thursday night on New Dam Road has died.

The man was identified as Shawn Beaulieu of Sanford. He was in the front seat of a Honda driven by Zachary Bubar.

The cause of the accident is still under investigation,but police said an improper pass may have been one factor.

The accident occurred Thursday when one car made a left hand turn and the car behind it tried to pass, hitting another vehicle. Six people were injured in the accident and two were taken to Maine Medical Center. The identities of the injured and their conditions have not been released.