Young couple targeted in 'violent and sustained' attack on a south London train

. Credit: .

A young couple, aged 22 and 21, were physically assaulted in a "violent and sustained attack" on a train in south London.

They were targeted by a group of three people between Charing Cross and Woolwich Arsenal and were left so badly injured they had to be taken to hospital for treatment.

CCTV image of a man police want to trace Credit: British Transport Police

Police have released CCTV images of three people they want to trace. The attack happened on Saturday, 5 April 2014 at around 10pm.

CCTV image of a woman police want to trace Credit: British Transport Police

Anyone with information is asked to contact British Transport Police on 0800 40 50 40, or text 61016, quoting reference SSUB/B4 of 11/06/2014. Information can also be passed anonymously to the independent charity Crimestoppers on 0800 555 111.