CNN) -- Coroner investigators suspect "the death to be a suicide due to asphyxia," according to a statement from the Marin County, California, Sheriff's office.
"Robin Williams passed away this morning," his media representative Mara Buxbaum told CNN.
"He has been battling severe depression of late. This is a tragic and sudden loss. The family respectfully asks for their privacy as they grieve during this very difficult time."