Officers have released CCTV images following an assault on a man who intervened in a pickpocketing incident at Oxford Circus Underground station.
At 11.40pm on Thursday, May 22, a 37-year-old man was near platform four when he spotted two men attempting to steal from a woman.
He confronted the suspects and managed to recover a stolen wallet.
However, the man was then punched and kicked to the ground by the pair.
The attackers fled the scene when other passengers rushed to help.
The victim was taken to hospital, where he was treated for a concussion and facial injuries.
Police would like to speak to the individuals shown in the released images, as they may have information that could assist with the investigation.
Anyone who recognises the men is urged to contact British Transport Police by texting 61016 or calling 0800 40 50 40, quoting reference 837 of 22 May 2025.