A woman was seriously after crashing into a pumper on Interstate 15 near Wildomar.
CAL FIRE/Riverside Engine 94 responded along with American Medical Response and the California Highway Patrol responded to a crash the interstate near Railroad Canyon at 7:04 a.m.
While crews were treating a patient at the crash scene, a vehicle slammed into to the back of the pumper.
Firefighters had to extricate the driver of the vehicle, according to a statement from CAL FIRE/Riverside County Fire.
The driver sustained serious injuries and was transported to the hospital by American Medical Response.
No firefighters were injured.
The California High Patrol is investigating the cause of the collision.
