Police are investigating a sexual assault reported on a train travelling to London Victoria, after a 15-year-old girl is said to have been the victim. According to reports, the suspect leaves the train at Gatwick Airport, prompting police to begin an urgent inquiry. Officers are asking for information and issuing an appeal, including requests for CCTV footage that may help identify the attacker and establish his movements. The investigation focuses on the journey leading to London Victoria and the time around the suspect’s departure at Gatwick Airport. Authorities are urging anyone who was on the relevant service or who may have captured footage or other information to come forward. Police have not, in the available reporting, confirmed further details about the suspect or the circumstances beyond the report of a sexual assault and the location where the man reportedly exited the train. The case remains under investigation as officers work to gather evidence and identify those who may be able to assist.