A manhunt is underway after a teenage girl was sexually assaulted on a train to London Victoria. The 15-year-old victim was attacked by a man on board the service at around 3.10pm on Wednesday, August 5. He seriously sexually assaulted the girl before getting off the train at Gatwick Airport, police said. Detective Inspector Ciaran May said: 'We're launching an urgent appeal following a very serious incident on board a train this afternoon. You can text us on 61016 or call 0800 40 50 40, quoting reference 469 of 05/08/26.'