A silver Ford Flex collided with a motorcycle in unclear circumstances.

Santa Ana, CA. – A motorcyclist was seriously injured in a Friday morning crash on Interstate 5 in Santa Ana.
According to the California Highway Patrol, the wreck happened on the southbound 5 Freeway just south of Yale Avenue.
A silver Ford Flex collided with a motorcycle in unclear circumstances.
The unidentified rider suffered severe injuries.
More information about the wreck was not provided.
An investigation is underway.