Police are appealing for witnesses after a teenage girl was attacked by a large group of youths in a “frightening ordeal” at West Ham station.

Officers were called after the 17-year-old was approached while changing trains at 10.30pm on Saturday, October 24.

The group surrounded her but as the girl tried to get away, she was pushed to the floor and insulted.

Police have now released an image of a man they wish to speak to in connection with the assault.

“Fortunately she sustained only minor cuts and bruises, but this was an extremely frightening ordeal,” said Det con Michael Hatcher, from the British Transport Police.

“I would like to reassure the public that such incidents are rare on the London Underground, and ask for their help identifying the man in the image.

“I believe he can help us with our enquiries. Please tell us who he is.”

Anyone with information should contact British Transport Police on 0800 40 50 40, or text 61016, quoting reference TSUB/B6 of 26/11/2015.

Alternatively call Crimestoppers anonymously on 0800 555 111.