SEAL BEACH – A 26-year-old motorcyclist died Wednesday morning after officials said his bike caught fire after colliding with a truck and SUV on the I-405, causing four lanes of the freeway to be closed for nearly four hours.

Orange County Fire Authority officials responded at 8:19 a.m. where Mitchell Roach of Long Beach was riding a Suzuki Intruder and crashed near the carpool lane of the northbound I-405 near Seal Beach Boulevard at a high rate of speed, OCFA Capt. Steve Concialdi said.

“Firefighter paramedics arrived on scene and assessed him, but there was nothing they could do to save him,” Concialdi said. “He was pronounced dead at the scene.”

California Highway Patrol officials responded and determined that Roach collided with a Jeep Cherokee and a two-axle flatbed truck, CHP Officer Denise Quesada said.

Roach had changed lanes into the HOV lane before slowing down and crashing into the rear of a 2015 Hino truck that slowed down to 15 mph. He was thrown from the bike.

The motorcycle caught fire and ran into a 2006 Jeep Cherokee. Roach died at the scene.

No one else was injured.

Authorities closed the four left-hand lanes, including the two carpool lanes, during the investigation.

All lanes were reopened to traffic shortly before noon, Quesada said.

Contact the writer: 714-796-7802 or aduranty@ocregister.com