Police are investigating allegations of a serious sexual assault against a 17-year-old female in the centre of Richmond.

The offence is alleged to have taken place at the Little Green, near Richmond Theatre, at around 10pm on Tuesday.

The victim is being supported by specialist officers.

Much of the Little Green through to the Starbucks and Lululemon stores were cordoned off by police on Wednesday.

A Metropolitan Police spokesman said: "There have been no arrests. Enquiries are ongoing."