A vehicle and a motorcycle were involved in the collision, whose cause was not immediately established

Atascadero, CA.- A motorcycle rider was killed in a collision in Atascadero on Saturday evening, according to the Atascadero Police Department.
The incident happened in the 8300 block of El Camino Real on Saturday, September 27.
A vehicle and a motorcycle were involved in the collision, whose cause was not immediately established.
The motorcyclist was killed in the crash.
Four passengers in the car were taken to Twin Cities Hospital with non-life-threatening injuries.
El Camino Real was shut down in the area as authorities investigated the incident.
The investigation is ongoing.
