The San Luis Obispo County Sheriff's Office is urging people to abide by road closure signs after a woman and her three children got stuck at a low-water crossing in the Estrella River.
It happened at about 6:15 p.m. on Thursday along North River Road in San Miguel.
Sheriff's officials say the woman drove around road closure signs and was attempting to cross through the moving water when her vehicle was swept off the road and partially into the river.
When first responders arrived at the scene, two civilians were attempting to get the children to shore through waist-deep water.
Sheriff's officials say a deputy assisted them in getting all of the children safely to dry land and then re-entered the river to assist the driver back to shore.