A pensioner was slashed with a knife by a man who tried to sell him drugs at a south London train station.

The 70-year-old man was walking through Thornton Heath station just after 10pm last Monday, August 29 when the inicdent happened.

He was approached by another man, who attempted to sell him drugs before lunging at him with what police described as "a blade article."

The quick-thinking pensioner put up his arm to protect himself, but was slashed across the hand with the blade.

The victim received treatment for his wound, and is expected to make a full recovery.

Today, detectives have released CCTV images of a man they would like to speak with in relation to the attack.

Investigating officer Detective Constable Michael Stephenson, said: “This was a vicious and wholly unprovoked assault and we are working tirelessly to track the person responsible.

“Luckily the victim only suffered a minor wound, but this could have ended very differently, therefore it is important we identify the attacker.

“I am very keen on speaking with anyone who might recognise this man in the CCTV. Likewise, if you saw or heard anything suspicious that evening, please get in touch today.”

Anyone with any information is asked to contact BTP by sending a text to 61016 or by calling 0800 40 50 40 quoting reference 264 of 05/09/2016.

Alternatively, information can be passed anonymously to independent charity Crimestoppers on 0800 55 111.