CARMEL, Calif. (AP) _ A woman posing for photographs on the shore was swept away by a large ocean wave and killed Sunday, Monterey County coroner investigators said.

In a similar situation Friday, a 13-year-old boy was swept off a beach near San Francisco and was presumed dead.

The 26-year-old woman was standing on some rocks with friends at Garrapata State Beach, south of Carmel, when the wave hit shortly before noon. Her husband jumped in after her but couldn't save her, investigators said. The woman reportedly did not know how to swim.

San Francisco authorities believe another wave churned up by piling sea swells off the city's coast crashed ashore and swept away the 13-year-old boy on Friday.

Witnesses said the boy was standing with friends along the shoreline at Baker Beach when the wave suddenly towered over their heads.

A high surf advisory had been in effect over the weekend throughout the region.