Sexual Assault On Southend-Bound Train
5 August 2014, 12:21 | Updated: 5 August 2014, 12:33
A woman has been sexually assaulted onboard a train from London's Liverpool Street to Southend Victoria.
A 23 year old was woken by a man attacking her back on July 25th.
She had boarded 12.50am service from Liverpool Street to Southend Victoria.
Both the victim and her attacker left the train at Southend Victoria station, and the man left the scene.
Following an appeal for information in the Southend area, officers are now looking further afield for information.
Detective Constable Paul Cudby said: "We now believe the man boarded a train from Shenfield to Prittlewell before getting onto the train with the woman.
"We are also looking into the possibility he may have made his way to Shenfield from east London.
"We have analysed onboard CCTV footage of the incident and are keen to speak to the man in the picture.
"I am confident he has key information on this assault.
"This was an extremely frightening experience for the victim and we need to find the person responsible for this assault as soon as possible."
Anyone with information is asked to contact British Transport Police on 0800 40 50 40, or text 61016