A 54-year-old man waiting at Catford Bridge station was assaulted by three men because he was wearing a top hat.

Police want to trace three men over the incident, which happened on February 28, just after 10pm.

According to officers, a trio approached the man on the Catford Bridge platform and asked if they could try his hat on.

He refused and boarded a train to Charing Cross, followed by the men.

On the train, one of the men approached the victim again before he was assaulted, suffering facial injuries, and had his hat stolen.

Investigating officer Stephen Allen said: "I am keen to speak to the men in the CCTV images as they may hold vital information to my investigation and I urge them to come forward."

Anyone with information should call British Transport Police on 0800 40 50 40, or text 61016, quoting reference S-SUB/B14 of 12/03/15. Information can also be passed anonymously to independent charity Crimestoppers on 0800 555 111.