The six people were found dead in Santa Barbara County and 50 people had been rescued from the area.
The deaths were reported in the Montecito and Carpinteria areas northwest of Los Angeles, which were severely hit by flooding and a debris flow, Amber Anderson with the Santa Barbara Office of Emergency Services confirmed to Fox News.
Many people stranded in Montecito have been rescued throughout the day.
"I've loved being part of the Montecito community," DeGeneres wrote on Twitter. "I send love to all the families and the amazing rescue workers braving these mudslides."
Rain is expected to intensify further in Santa Barbara and Montecito area.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)