A teenage boy was rushed to hospital after being stabbed at Sutton railway station.
Officers were called to the south London station following reports of an attack at 10.30pm on Monday, April 3.
A 14-year-old boy was taken to a local hospital for treatment after he was found at the scene with injuries.
His condition is not deemed life-threatening or life-changing, British Transport Police said in a statement.
Detectives have released CCTV images of men they would like to speak to in connection with the incident.
Anyone who recognises them, or has any information relating to this incident, can contact British Transport Police by texting 61016 or by calling 0800 40 50 40 quoting reference 774 of 3 April.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.
