US and UK police have launched investigations into sexual assault allegations against the film producer Harvey Weinstein.

Axar.az reports citing BBC that, the New York Police Department is looking into an allegation dating from 2004 and is reviewing whether there are any additional complaints.

London's Met Police has received an allegation of sexual assault in the London area in the 1980s.

Weinstein has "unequivocally denied" any allegations of non-consensual sex.

US actress Rose McGowan took to Twitter on Thursday to allege that she was raped by Weinstein.

Three other women have already accused Weinstein of rape, according to an investigative article in The New Yorker magazine.

In a series of tweets addressed to Amazon founder Jeff Bezos, McGowan alleged she had told Amazon Studios she had been assaulted by Weinstein.

Amazon later said in a statement that its studio head, Roy Price, had been put on "leave of absence" and that it was reviewing projects it had with the Weinstein Company.

Weinstein's spokeswoman Sallie Hofmeister reiterated on Thursday: "Any allegations of non-consensual sex are unequivocally denied by Mr Weinstein."

The New York Police Department said it was "looking to speak" to an individual who had made an allegation dating from 2004.

Assistant Commissioner J Peter Donald said: "Based on information referenced in published news reports, the NYPD is conducting a review to determine if there are any additional complaints relating to the Harvey Weinstein matter.

"No filed complaints have been identified as of this time."

The force also appealed for anyone with information to come forward.

The Metropolitan Police, meanwhile, said it had been passed the allegation of sexual assault by Merseyside Police.

A Merseyside Police statement said it "can confirm a report was received at 8.40am on Wednesday (11 October 2017) of an alleged sexual assault in the London area in the 1980s".

The investigations come as more women publicly accuse Weinstein of inappropriate behaviour, sexual harassment or assault.