Two people were killed early Sunday morning after the SUV they were riding in left the roadway and struck a tree on Jones Bridge Road in Bethesda, according to Montgomery County Police officials.

About 2:51 a.m., police said they received a call from an unknown person about an accident in the 4400 block of Jones Bridge Road near Lancaster Drive.

A preliminary investigation showed that a white, 2007 Chevy Trailblazer headed westbound on Jones Bridge Road from the direction of Connecticut Avenue struck the curb, went up on the sidewalk, and struck a chain link fence and hit a tree, said Capt. Paul Starks, a Montgomery County police spokesman.

There were five people in the car, including the driver. They ranged in age from 18 to 22.

Police said they are still trying to confirm the identifies of the two victims who died. One of them was a male, who was riding as the front seat passenger. The other person was a female who was in the back seat, directly behind him.

The cause of the accident is still under investigation, Starks said. Police are also still investigating whether the riders were wearing seat belts.

Two of the men in the vehicle were taken to Suburban Hospital for non-life threatening injuries, Starks said. The driver was sent to shock trauma at Baltimore.