John Maytham on Monday spoke to a man whose son was attacked and his left hand seriously severed by two men, in what he believes could've been a gang initiation practice.
The incident took place in the early hours of Friday morning on the corner of Bowwood and Foyle in Claremont.
The man says the two men were seen by a witness speeding off in a in a silver Renault Megane.
His son was taken to hospital where his hand reattached during two emergency operations on Friday.
The reason of the attack is still unknown and the two men are at large. He is asking if anyone has seen or heard of what happened to his son to please come forward with the information and help in apprehending the culprits.
Listen to Chris's conversation with John Maytham below: