A 39-year-old motorcyclist died in a crash involving two big-rigs and another vehicle on southbound Interstate 680 in San Ramon early Monday morning, a California Highway Patrol spokesman said.
The crash was reported around 4:40 a.m. on the highway just south of Bollinger Canyon Road, CHP officials said.
It began when a Honda rear-ended a big-rig, then spun around and became disabled in the No. 3 southbound lane, CHP Officer Derek Reed said.
The motorcyclist then struck the Honda and was ejected. Shortly afterward, a second big-rig struck the motorcycle and the 39-year-old man, who was pronounced dead at the scene, Reed said.
His name is not yet being released until his next of kin is notified of the death, Reed said.
The second big-rig struck the center median and caught fire. A small amount of oil also spilled onto the roadway, according to Reed.
All southbound lanes except the far right lane were blocked for more than four hours while crews put out the fire, cleared the vehicles from the roadway and cleaned up the spilled oil, Reed said.
The lanes reopened by 8:55 a.m.
The motorcyclist's death is the second traffic fatality in the area in just over a week. San Ramon resident Ravi Pappu, 32, was killed in a nighttime crash on Crow Canyon Road about a mile west of the city on Sept. 13.