Prosecutors in New York are reportedly preparing to bring a case against Harvey Weinstein before a grand jury as early as next week, as the avalanche of accusations against the disgraced film producer continues.

Scotland Yard said on Tuesday that an eighth woman had come forward to accuse the 65-year-old of sexual assault.

The alleged incident occurred outside of Britain in 1991, and the complaint is being passed on to the relevant authorities, the Yard said on Tuesday, without specifying in which country the incident took place.

Weinstein has denied all allegations of assault and non-consensual sex. No one has been arrested in the London investigations.

New York media reported on Tuesday that Cyrus Vance, the district attorney for New York county, was planning to bring Weinstein's case before a grand jury as soon as next week.