'I stabbed a teenager in the neck - here's my message for people who carry knives'

Resting on young shoulders, a white coffin is carried through a youth centre in southeast London.

The scene looks like a funeral. That is the intention - but it is something else entirely.

Inside the coffin is a large sculpture: a bloodied knife carved with the skyline of London. The imagery is stark.

A group gathers around the coffin to take it in. Some of them are in tears.

It forms part of a new anti-knife crime project titled Re-claim, created by multimedia artist Eugene Ankomah and designed to shine a light on teenagers "lost to the streets". Mr Ankomah says the reaction from some visitors has been emotional.

"I have had young people who have carried knives in the past come into this venue, and some of them have broken down crying," he said. "That's what I want.

I want them to have a change of heart, a change of mind." The installation, based at the Salmon Youth Centre in Bermondsey, takes visitors along what Mr Ankomah describes as an "incident trail.