The Metropolitan police have widened their investigation into Harvey Weinstein and are looking into allegations of sexual assault on seven women.

Officers working on Operation Kaguyak are investigating alleged crimes said to have taken place between the late 1980s and 2015. They were all reported to the the Met between 12 and 28 October.

The earliest alleged sexual assault by Weinstein in the UK is said to have happened in west London in the late 1980s. A second victim alleged she was sexually assaulted in Westminster in 1992, a third in 1994 and a fourth in the mid-1990s.

Two victims alleged they were sexually assaulted three times by the Hollywood film producer. One woman said she was assaulted in 2010, 2011 and 2015. Another said she was assaulted by Weinstein first outside the UK in 2012, and then in Westminster in 2013 and 2014.

The seventh complainant says she was attacked outside the UK in the 1980s. That complaint will be passed to the relevant foreign police authorities, alongside any other alleged attacks that took place outside the UK.

No arrests have been made. Weinstein has denied any allegations of non-consensual sex.

Met police commissioner Cressida Dick, asked about reports her force was investigating the complaints, said: “We do not name people in such investigations and nor do we given ticker tape updates on any investigation.

She went on: “We take sexual offences seriously, of course we do, and we will always receive an allegation and we will then assess that, and we will investigate fairly and proportionately.”

Police in the US have said they are also investigating allegations against Weinstein.