UPDATE (12:12 p.m.): The Kern County Sheriff’s Office has identified the man killed in the crash as 33-year-old Francisco Javier Hernandez Cruz.

UPDATE (10:25 a.m. 4/28): Drugs or alcohol don’t appear to be factors in the crash, the CHP says.

Officers said the motorcycle’s rider made an unsafe turn and hit the right rear of the big rig’s trailer. The impact threw him from the motorcycle and onto the roadway.

The rider’s name had not been released as of 10:30 a.m. Wednesday.

UPDATE (8:30 p.m.): All lanes are now open on southbound Highway 99 near Airport Drive, according to Caltrans.

BAKERSFIELD, Calif. (KGET) — A motorcyclist died in a crash on southbound Highway 99 near Rosedale Highway Tuesday evening, according to the California Highway Patrol.

The incident happened at around 6:29 p.m. CHP says the motorcycle may have lost control splitting lanes, causing the collision. The motorcyclist was pronounced dead at the scene, according to CHP.

Caltrans announced the #2 and #3 lanes on southbound Highway 99 near Airport Drive are closed due to the collision. There is a four-mile back up with no estimated time of opening.

This is a developing story. Check back for updates.