Both directions of Highway 99 are closed south of Yuba City due to a crash involving at least two vehicles, authorities say.

Police want to know more about what led to a crash at midday Tuesday that killed two people and snarled traffic for hours.

CHP said at the time a white Toyota traveling west on the highway abruptly turned into a vehicle and collided with a blue semi-truck trailer. This was quickly followed by the white Toyota ...

Motorists in Encinitas could expect delays early Friday after a semi-truck veered off the roadway on southbound Interstate 5 ...

After an early morning accident, the two right lanes on Interstate 15 North in Mission Valley are blocked, Caltrans says.