Beloved comedian and actor, Robin Williams, has passed away at 63.

Williams was found in his California home, unconscious and not breathing around 12 p.m., USA Today reports. He was pronounced dead shortly after. Although his death is still under investigation, the coroner is suspecting that his death was due to apparent suicide from asphyxiation. Williams had been suffering from depression in recent times, which they believe may have contributed to his death.

The president of William’s PR firm released a statement earlier as a result of the devastating news. "Robin Williams passed away this morning," said Mara Buxbaum. "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."

A press conference will be held on August 12 at 11 a.m., according to the press release from Marin County Sheriff’s Office Coroner Division.

Word of his death spread through social media like wildfire, drawing an outpouring of tweets and comments, mourning the late actor. Here is a list of some celebrity reactions to his death.

Image courtesy of INFphoto.com

[ new page = Ralph Macchio ]

10. Ralph Macchio

[ new page = Kathy Griffin ]

9. Kathy Griffin

[ new page = Monica Raymund ]

8. Monica Raymund

[ new page = Lea Thompson ]

7. Lea Thompson

[ new page = Ellen DeGeneres ]

6. Ellen DeGeneres

[ new page = Shalyah Evans ]

5. Shalyah Evans

[ new page = Kathie Lee Gifford ]

4. Kathie Lee Gifford

[ new page = Ray William Johnson ]

3. Ray William Johnson

[ new page = Jim Norton ]

2. Jim Norton

[ new page = Pierce Gagnon ]

1. Pierce Gagnon