Roman Polanski is being accused of sexual assault yet again.

Just moments ago British actress Charlotte Lewis, who appeared in Polanski's 1986 film Pirates came forward to claim she was victimized by Polanski in Paris in 1982 when she was just 16 years old, while he was a fugitive from his 1977 rape trial in the US.

Accompanied by her attorney Gloria Allred, Lewis held a press conference in LA, where Lewis said Polanski "sexually abused me in the worst possible way when I was just 16, four years after he fled the US."

Lewis claims the director "forced himself upon me" in his Parisian apartment and Allred says her client "is ready to testify under oath if and when that is necessary."

"I came forward because I heard Polanski is fighting his return," Lewis said. "His legal team portrayed his assault as an isolated incident," but Lewis says that's clearly not the case. Allred says they've reported it to the Los Angeles authorities, but since Lewis is British and the alleged offense took place in Paris, it's not clear what jurisdiction they'd have, if any.

The Oscar-winning director is still fighting previous sexual assault charges. Polanski is accused of giving drugs to Samantha Geimer, then aged 13, and raping her at the home of actor Jack Nicholson back in 1977. Polanski was indicted on six felony counts and pleaded guilty to one count of unlawful sexual intercourse.

Polanski has been living under house arrest at his Swiss chalet in the luxury resort of Gstaad. Back in 1978, he fled the U.S. on the eve of his sentencing date, and authorities have been trying to get him back ever since.