Condolences to family & friends of Deputy Sheriff Carlos Francies who died today trying to save someone from drowning at Lake Tahoe. — Contra Costa Sheriff (@CoCoSheriff) August 14, 2015

CONTRA COSTA COUNTY, Calif. (KGO) -- The Contra Costa County Sheriff's Office says Deputy Carlos Francies died while saving the life of another.The South Lake Tahoe Police Department informed the Contra Costa County Sheriff's Office of Francies' death. They say he jumped into deep lake water and saved another person who was drowning.Francies worked in Martinez and lived in Sacramento. He is survived by his girlfriend and three siblings. Two of Francies' siblings also work in law enforcement.Francies coached youth football.Contra Costa Sheriff David O. Livingston released a statement saying, "Today we lost a dedicated Deputy Sheriff and a member of our family. Deputy Carlos Francies died doing what he was sworn to do: putting himself in harm's way to protect the lives of others. He is a hero and an example of exactly what is right in law enforcement today. We mourn with his family, friends and colleagues."The investigation will be headed by local law enforcement.