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Sylvester Stallone’s son Sage Stallone has died.

The 36-year-old was found dead at his apartment in Hollywood, reports the New York Post.

Sources claim that Sage likely passed away following an overdose of pills, which were found at his home, but it is currently unclear if his death was a suicide or accidental.

Sage’s attorney George Braunstein said: “I have just gotten a report that he was found dead at his home.”

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

An LAPD spokesperson confirmed that Sage was found dead alone after police carried out a “welfare check” when someone couldn’t establish contact with Sage.

“There is no suspicion of foul play or criminal activity”, the rep added.

Sage made his acting debut opposite his father in Rocky V, playing the role of Rocky’s son Robert Balboa. He appeared with his dad again in Daylight, and went on to direct, produce and write