Detectives from the Homicide and Major Crime Command have charged two further youths with the murder of 17-year-old Michael Jonas in Bromley.
A 14-year-old male [D] and a 17-year-old male [E] will appear in custody at Bromley Magistrates' Court on Monday, 13 November.
Michael was stabbed at around 19:20hrs on 2 November in Betts Park, Penge.
A post-mortem examination the following day at the Princess Royal University Hospital confirmed the cause of death as stab wounds to the chest and haemorrhage.
A 17-year-old male [B] and a 16-year-old male [C] previously appeared at Bromley Magistrates' Court on Thursday, 9 November, charged with murder.
+ An 18-year-old [F] was arrested on suspicion of murder on Friday 10 November 2017 and taken to a south London police station before subsequently being questioned and released under investigation.
+ A 16-year-old boy [A] was arrested on suspicion of murder on Saturday, 4 November and taken to a south London police station. He has since been released with no further action.