A Sig alert was issued for a section of Interstate 8 near Pine Valley Road as firefighters worked to extinguish a fully involved semi-truck and trailer fire, fire officials said.
The incident happened at approximately 2:11 p.m. Monday on the Westbound Interstate 8 east of Pine Valley Bridge near Corte Madera Road. One lane is open to traffic and another lane remains closed for equipment and cleanup.
California Highway Patrol officials and U.S. Forest Service firefighters are on scene responding.
The fire had spread to a section of nearby brush, but the brush fire was extinguished.
Cars were diverted off the freeway.
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