A 21-year-old man has denied murdering a teenager found stabbed to death in a stairwell.

Romell Martin, of Fairgreen Road, Thornton Heath, is accused of murdering Peter Hagan, 16, of Stockwell.

Mr Hagan's was attacked in the ground floor stairwell of Albon House in Neville Gill Close, Wandsworth, on February 17.

He was confirmed dead at the scene.

Mr Martin appeared at the Old Bailey yesterday and gave a not guilty plea.

He will next appear on trial at the Old Bailey on August 12.