Tragedy strikes California river as two young siblings lost

Rescuers are searching for a four-year-old boy who was carried away by the current of a California river after his eight-year-old sister was found dead. The children, who were not wearing life jackets, entered the water with their mother and another adult while trying to make their way to climb on a specific rock. The river was off limits because of high water levels. Authorities have warned people to exercise caution along rivers where high water levels and stronger flows are creating dangerous conditions.