Two teenagers held on suspicion of murdering 15-year-old Jermaine Goupall
The police have appealed for more information following the arrests.
A 16-year-old boy and an 18-year-old woman have been arrested on suspicion of the murder of a 15-year-old boy who was stabbed to death in south London on Tuesday.
Metropolitan Police detective chief inspector Tony Lynes confirmed the arrests as he launched an appeal for friends of victim Jermaine Goupall to come forward with information over the death.
He said: “We understand they may be reluctant to do so, they may be in fear or concerned about the investigation or the impact of this incident.
“But we have trained officers who can deal with them sensitively and we urge them to come forward because they may have vital information.”
Mr Lynes said witnesses described three people attacking Jermaine while wearing balaclavas, just a two-minute walk from his family home.
He said: “Clearly, what’s been described to us would have been a distressing, upsetting scene for people passing by.
“We’re talking about (suspects) in balaclavas, armed with knives, one described as being in possession of a machete.
“(There is) clearly a very violent and sinister aspect to this case.”
A post-mortem examination carried out on Wednesday gave the cause of death as a single stab wound to the leg.