Police investigating the death of 17 year-old Dogan Ismail in Walworth on Sunday have released a CCTV image of a youth they wish to trace. 15 year-old Dawda Jallow was filmed taking a bus between Camberwell Green and Newington Causeway that evening. His face has been blurred for legal reasons.
Anyone who sees him is asked to call 999. Anyone with information on his whereabouts is asked to contact the police incident room on 020 8358 0200 or if you wish to remain anonymous call Crimestoppers on 0800 555 111.
Detectives have taken the rare step of naming a boy they want to question over the murder of a teenager in south London.
Dogan Ishmile Ismail, who was 17, was stabbed to death in Walworth on Sunday afternoon.
Police want to speak to 15-year-old Dawda Jallow.