The motorcyclist killed in a collision south of Orcutt Saturday afternoon was a Riverside County man, the Santa Barbara County Sheriff’s Coroner’s Bureau said Monday.

Timothy Greene, 64, of Corona, died in a traffic collision involving two motorcycles.

Emergency crews responded to the area where northbound Highway 135 onramp meets Highway 1 around 3:30 p.m., according to the County Fire Department.

One rider was declared deceased at the scene, later identified as Greene. The second motorcyclist, a 60-year-old man from Huntington Beach in Orange County, was transported to Marian Regional Medical Center with critical injuries.

The investigation into the collision’s cause was ongoing, California Highway Patrol (CHP) Officer Maria Barriga said Monday.

Anyone with information about the collision can contact CHP at 805.608.6310.

“Our thoughts are with everyone affected by this tragic crash and the families impacted,” CHP Commander Lieutenant R. Rodriguez said. “The California Highway Patrol remains committed to conducting a thorough investigation to determine all of the circumstances surrounding this incident and to promoting safe driving behaviors that help prevent tragedies like this.”