A passenger who challenged two men for smoking on a train was punched repeatedly in the face, leaving him with a bloody nose.

The suspects boarded the service from Charing Cross to Gravesend at 12.45am on Sunday, October 10, lighting up cigarettes.

A passenger in the same carriage moved away and challenged them as he walked past.

One of the men jumped up and punched him repeatedly in the face, causing his nose to bleed.

The victim then got off the train at New Eltham station.

Officers believe the men in the CCTV images may have information which could help their investigation.

If you recognise them, or have any information, please contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 36 of 10/10/21.

Alternatively, you can call Crimestoppers anonymously on 0800 555 111.