Police have investigated a sex video suspected to have been made inside a fitting room at a clothing store in Beijing's Sanlitun district and widely circulated on social media.

Beijing police said in a statement on Wednesday that officers had received several reports from Internet users over the online circulation of the indecent video.

A man in a dress and a naked woman are featured in a fitting room. The video went viral on social media late on Tuesday. People who uploaded it claimed it had been shot at the Uniqlo store in Sanlitun.