More from The New York Post:

Sage’s attorney George Braunstein said Sage was found a couple hours ago in his home. He told The Post: “I have just gotten a report that he was found dead at his home.”

“He was in good spirits, and working on all kinds of projects,” said Braunstein. “He was planning on getting married. I am just devastated. He was an extremely wonderful, loving guy. This is a tragedy.”

He added he did not know if Sylvester had yet been informed but Sage’s mother Sasha Czack had been told.

A rep for the LAPD confirmed that Sage Stallone was found dead alone in his home.

“There is no suspicion of foul play or criminal activity”, the rep said, adding that police went to the home for a “welfare check,” when someone couldn’t get in touch with Stallone and asked the police to investigate.

Twitchy will continue to monitor this story and will update accordingly.

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TMZ is reporting that Stallone died of a pill overdose and that his body was discovered by his girlfriend.

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Twitterers expressed their condolences:

https://twitter.com/Kt_StrikesAPose/status/223928430943666176

https://twitter.com/WalterWeird/status/223928025937494016

Celebrities pay their condolences.

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Update: Arnold Schwarzenegger, who appeared with Sylvester Stallone Thursday night at a Comic-Con panel to promote “The Expendables 2,” has added this thoughts.

RIP.