A 19-year-old man was killed in an early morning car accident on the 2500 block of Ousdahl Road. Police withheld the name of the victim, who is believed to be a Lawrence resident, until his family is notified.

Four other passengers, all from Lawrence, were injured. A 16-year-old girl and 17-year-old girl suffered life-threatening injuries, and were transported by air ambulance to Kansas University Hospital. Two other passengers, a 20-year-old man and a 16-year-old girl, suffered less severe injuries, and were taken to Lawrence Memorial Hospital, said Lawrence-Douglas County Fire & Medical Battalion Chief Joe Hoelscher.

The single-vehicle accident occurred at about 2:10 Saturday morning at the intersection of 25th Terrace and Ousdahl Road, a residential area. The car, a 1984 Chevrolet, was heading southbound on Oushdahl Road when it went off the east side of the road and slammed into a tree in front of a home. The driver was pronounced dead at the scene. Lawrence Police Sgt. Susan Hadl said a passer-by extricated the injured passengers.

Police are investigating the cause of the accident. Hadl said speed, alcohol and a wet roadway could be to blame, but said the investigation would continue.