BUSAN (AFP) - Oscar-winning director Oliver Stone said producer Harvey Weinstein was being "condemned by a vigilante system" as people rush to pass judgement on allegations he sexually abused and raped multiple women.

Stone said on Friday that he believed the industry and the public were prematurely judging Weinstein.

"I'm a believer in you wait till this thing gets to a trial," he told reporters in the South Korean city of Busan, where he is heading a jury at an international film festival.

"If he broke the law, it will come out. I believe that a man shouldn't be condemned by a vigilante system."

Stone also said Hollywood was rife with "horror stories" but such allegations remained hearsay.

"So it's not easy what he's going through," he said.

"During that period, he was a rival and I didn't really know him. I've heard horror stories about everybody in the business so I'm not going to comment on gossip."

Stone's remarks came a day after American actress Rose McGowan became the fourth woman to accuse Weinstein of raping her.

His accusers include such big-name actresses as Angelina Jolie, Gwyneth Paltrow, Mira Sorvino, Kate Beckinsale and actor-singer Ashley Judd.