Detectives are appealing for information following an attempted aggravated robbery at Dollis Hill underground station where a teenager was attacked.
Officers have released CCTV images of a group of men they wish to speak to in connection with the incident on February 16 at 9.20pm.
A teenage boy approached a group of boys to interact with them, British Transport Police said.
They then turned on him kicking and punching him and tried to steal his bag.
The victim sustained bruising to his eye and to the side of his face.
Anyone with information should contact BTP on 0800 40 50 40 or text 61016 quoting reference 714 of 16/02/18.
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