If you recognise the man in the CCTV image or have any information that you think might assist the investigation, contact British Transport Police on 0800 40 50 40 quoting incident number B211/10/12 or call Crimestoppers annonymously on 0800 555 111

A young woman woke up to find an unknown man inappropriately touching and kissing her on the train, police said.

Officers are appealing for information following the attack on the 24-year-old victim, who was travelling from King’s Cross station on the Hammersmith and City tube line just before midnight on Monday, August 27.

After falling asleep she awoke with the man leaning over and sexually assaulting her before she managed to push him away as the train pulled into Barking station.

The man is thought to have then run off before boarding a District line train.

DS Margaret Storey, investigating, added: “We have followed up a number of enquiries but are yet to identify the man in the image, and I encourage anybody who knows him to get in touch straight away.

“Incidents like this are very rare, but this was clearly a very distressing experience for the victim. We’ll do everything in our power to catch the person responsible.”

Information to British Transport Police on 0800 40 50 40, quoting incident number B211/10/12, or Crimestoppers anonymously on 0800 555 111.