DETECTIVES have released CCTV images of two men they would like to speak to after a young couple were punched in the face in an unprovoked attack on a train platform.

British Transport Police has released CCTV stills of the men they want to identify in connection with the assault, which took place at King’s Cross station on Saturday April 9 just after 10pm.

The victims, a man and a woman in their late 20s, had been engaged in a brief, innocuous conversation with their assailant, after he approached them on the platform.

He initially walked away – before suddenly turning back and out of the blue hitting the man and then the woman in the face.

Detective Constable Stephen McBride, of BTP, said: “The victims, a couple in their 20s, were on the concourse when they were approached by a man.

“The man then walked away before returning towards the couple a few moments later and launching an attack on them.

“The male victim was punched in the face, before the man then turned to the female victim and punched her in the face too.”

The woman was knocked to the ground and suffered a cut lip, bloody nose and swelling to the face.

DC McBride added: “This was a particularly nasty and unprovoked attack on a couple who were simply trying to get home after an enjoyable day out in London.

“We’ve followed a number of avenues of enquiry since the incident and I am now appealing for anyone who may have witnessed the assault, as well as anyone else who recognises the men in the CCTV images, to come forward.”

Anyone with information should contact British Transport Police on 0800 40 50 40, quoting background reference B9 LNA of 11/5/2011, or call Crimestoppers anonymously on 0800 555 111.