Police would like to speak with this man in connection to the incident (Image: BTP)
A man deliberately fell on a woman on a Tube train and then sexually assaulted her, police say.
The 19-year-old woman was travelling on the Piccadilly Line when a man who had been sitting next to her stood up and deliberately fell onto her as it reached Holborn station.
British Transport Police (BTP) said he then sexually assaulted her before standing up and smiling.
Detectives investigating the sexual assault have released an image of a man they believe may 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 number 2300099136.
The public can also call Crimestoppers anonymously on 0800 555 111.
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