The California Highway Patrol said an 11-car crash on a freeway in San Francisco Tuesday morning appears to have been caused by "people driving too fast with the sun in their eyes."
The pileup happened at about 7:30 a.m. on northbound Interstate 280 south of Ocean Avenue, the CHP said.
Only minor injuries were reported.
"Daylight savings time just started, so the sun is in a different place in the sky than it was during your commute a couple of weeks ago," the CHP said in a Facebook post. "Please make sure you are driving at a safe speed and that both you and your vehicle are prepared for changing conditions no matter what the weather is outside!!"