Detectives investigating the murder of a teenager in Lambeth on New Years Eve, have named the victim as 17-year-old Kyall Parnell and made two arrests.
On Thursday, 4 January, two males, both aged 16, were arrested;
One 16-year-old [A] from Lambeth was arrested on suspicion of murder.
A second 16-year-old [B] from Thornton Heath was arrested on suspicion of violent disorder.
They are currently in custody at police stations in south London.
Kyall, from Thornton Heath , was stabbed in Norwood Road near the junction with Station Rise, Tulse Hill, SE27 at around 22:43hrs on Sunday, 31 December.
Police and London's Air Ambulance attended. Kyall was pronounced dead at the scene at 23:38hrs.
His next of kin have been informed. A post-mortem examination held on Tuesday, 2 January gave a preliminary cause of death as a single stab wound to the heart.
Detectives from the Homicide and Major Crime Command are investigating.
Police retain an open mind as to a motive, but initial enquiries have indicated that an initial altercation may have begun on board a route 68 bus travelling towards Herne Hill shortly before the stabbing.
DI Ian Titterrell, said: " Kyall was only 17 and his death has devastated his family and those who knew him. We have made two arrests but we are continuing to investigate the circumstances surrounding Kyall’s death. We would urge anyone with information about what happened to contact police."
Anyone who witnessed this incident or has information should call the incident room on 020 8721 4005 or contact via Twitter @MetCC
To remain anonymous, call the independent charity Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org.