A woman sustained unknown injuries in a single-vehicle rollover crash Friday on Highway 86 in the community of Oasis.
The crash was reported shortly after 9:50 a.m. Friday near 81st Avenue, according to the California Highway Patrol.
Officer David Torres said a Toyota Tacoma being driven at an unspecified speed northbound on Highway 86 overturned onto the right shoulder and landed on its roof.
The driver, identified only as a Thermal woman, escaped injury, but a female passenger was treated for injuries of unknown severity.
DUI is not suspected to be a factor in the crash, Torres said.
The cause of the crash was under investigation.