A man is wanted after two different women were sexually assaulted on Tube trains in May and July.

British Transport Police have said that the first woman was sexually assaulted on a Circle line train at Liverpool Street station on May 8.

On July 1, a different woman was then sexually assaulted on a Victoria line train at Seven Sisters Tube station.

Officers investigating the incidents believe they are related.

They have now released the image of a man who they believe might have information that could help their investigation.

Anyone who recognises him is asked to contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 612 of 1 July.

Alternatively, you can contact Crimestoppers anonymously on 0800 555 111.