The California Highway Patrol is investigating a single-vehicle rollover accident that occurred Wednesday evening.

The accident was reported at 6:05 p.m. on State Route 111 just south of Harris Road. A vehicle went out of control and ended up on it's side on the shoulder of the highway. The roadway was closed for about 30 minutes for a REACH Air Ambulance to land. An injured subject was transported to a San Diego hospital for treatment. No other information is available as the accident remains under investigation.