British Transport Police (BTP) officers have released a CCTV image of a man they would like to speak to in connection with a sexual assault on board a Central Line train in September.
At around 6.30am on September 15, a man stood by a woman on platform 3 at Stratford station.
According to the BTP, he followed her onto a train towards Liverpool Street, before sexually assaulting her.
Officers believe the man in the image may have information that could help with their investigation.
Anyone who recognises him is urged to contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 133 of 15 September.
You can also contact Crimestoppers anonymously on 0800 555 111.
