A driver was killed over the weekend when he lost control of his car in north Harris County. The accident happened early Sunday when a man was driving southbound on Airline. The driver hit the curb and rolled over. According to HCSO investigators, the victim was thrown from the vehicle and pronounced dead at the scene. Authorities say that the speed in which he was driving was at a high rate. The cause of the crash remains under investigation. Airline was shut down for awhile following the early morning accident and was reopened later Sunday morning. The name of the man has not been released.