The first crash was a hit-and-run that occurred at 10:08 a.m. on northbound Highway 101 in Millbrae, where a white Chevy Wagon collided with a gray Honda Pilot, said Officer Tony Tam. The driver of the Chevy Wagon did not stop and was last seen northbound on the highway, Tam said. An occupant of the Honda suffered minor injuries and was transported to San Francisco General Hospital, according to the CHP.
A description of Chevy Wagon's was not provided. Authorities closed two highway lanes and reopened them at 10:57 a.m.
The second accident occurred at 11:26 a.m. on eastbound Interstate 380 in San Bruno, where two vehicles and a big rig collided at the El Camino Real offramp, Tam said.
One motorist suffered minor injuries and was transported to San Francisco General Hospital, according to the CHP.
The offramp, which closed for nearly two hours, reopened about 1:30 p.m., authorities said.
San Mateo County Animal Control is caring for a dog found at the scene but officers were not sure if the animal was involved in the accident, Tam said

The San Jose Injury Law office of Geoffrey C. Nwosu helps San Jose, Oakland and San Francisco accident victims. They can be reached at 408-375-7703.