A 16-year-old youth has been charged with the murder of another teenager, police said.
Alim Uddin, 17, was killed in Tilford House, Brixton, south London, on Sunday.
The youth has been remanded in custody to appear at Camberwell Green Magistrates' Court, south London, today.
Officers were called to Tilford House, Holmewood Gardens following reports of a stabbing.
The victim was taken to a south London hospital by London Ambulance Service where he was pronounced dead.
Anyone with information which might assist the investigation was asked to contact the incident room on 020 8721 4054 or to call Crimestoppers anonymously on 0800 555111.