Sheriff’s officials say Robin Williams committed suicide by hanging himself at his San Francisco Bay Area home.
Sheriff’s officials said a preliminary investigation determined the cause of death was suicide due to asphyxia.
Williams was 63 and had suffered for years from periodic bouts of substance abuse and depression.
Coroner’s officials say he was last seen alive at home around 10 p.m. Sunday.
The comedian’s spokeswoman says Williams passed away Monday morning, saying “He has been battling severe depression of late.”
His wife, Susan Schneider, added: ”This morning, I lost my husband and my best friend, while the world lost one of its most beloved artists and beautiful human beings. I am utterly heartbroken. On behalf of Robin’s family, we are asking for privacy during our time of profound grief. As he is remembered, it is our hope the focus will not be on Robin’s death, but on the countless moments of joy and laughter he gave to millions.”
He is survived by his wife and three children, son Zachary, 31; daughter Zelda, 25 and son Cody, 22.
Williams married Schneider, his third wife, in 2011.
The Chicago native gained popularity for his early stand-up comedy and his role on Mork & Mindy.
His film career included an Oscar for best supporting actor in 1998 for Good Will Hunting.