Sylvester Stallone's nephew has accused the action star for neglecting his 36-year-old son, Sage, who was found dead at his home from an apparent overdose.

London: Sylvester Stallone's nephew has accused the action star for neglecting his 36-year-old son, Sage, who was found dead at his home from an apparent overdose.

Stallone's nephew Edd Filiti made the claims on his Facebook page but they have been removed since then, the Daily Mail reported.

The 18-year-old slammed Stallone and his current wife Jennifer Flavin for cutting Sage out of their life.

"What did he do wrong, say happy birthday? Neither you (Flavin) or he could return a phone call, which is all he wanted, his father. I know you don't care what happened, but you'll care when you're squirming under the burning magnifying glass of public opinion. You people make me sick," Filiti posted on his Facebook page.

Edd, who is the son of Stallone's half-sister Toni Ann, also went on to make a withering attack on the 43-year-old former model, who married the Rocky favourite in 1997.

"Jennifer Flavin, you won. You tore this family apart and got your trophy, Congrats! 'Like you told my family, 'I'm Sly's family now, he doesn't (need) you anymore. Lets see how much he needs you after this," Filiti added.

Sage's mother Sasha Czack, split with Stallone in 1985 after 11 years of marriage.

An autopsy and a toxicology test were completed on Sage, whose body was found in his apartment on Friday, but the results will be released weeks later.

PTI