Police have arrested a man after a teenage cyclist was allegedly hacked to death in south London by a machete-wielding gang.
The 17-year-old student, named locally as Mohammed but known as “Little Mo”, was stabbed to death on a Battersea estate on Sunday after being chased by a group armed with machetes.
Witnesses described how he was attacked by the masked gang of youths who left him sprawled on a bonnet of a car, calling for help.
He was heard screaming: "Help me, I'm dying."
The teenager was rushed to hospital after being found on Ingrave Street at 1.25am but was pronounced dead around 90 minutes later.
Detectives investigating the case now said they have arrested a 19-year-old man on suspicion of murder. He was detained by police at an address in Wandsworth on Wednesday morning.
The Met said their enquiries are continuing.
Mohammed is the fourth teenager to be murdered in London in April and the eighth this year.
Forensic officers combing the York Road estate found the boy's bike and a blood-soaked car from the scene.
According to residents living nearby, the gang - who were reportedly wearing balaclavas - jumped out of a car and began chasing Mohammed as he rode his bike.
Since Saturday, five people - including Mohammed - have been killed in the capital.
On Saturday, 42-year-old Damien McLaughlin was stabbed to death in Enfield by a group of men believed to be wearing ski-masks. The following night a 60-year-old man was killed in a knife attack in Bow Common Lane, Mile End.
On Tuesday night, another man was killed in Wandsworth - the fourth person to be killed in the capital's streets in as many days.
The man, who is in his 20s, collapsed in the street outside Wandsworth Preparatory School.
And last week 19-year-old Jordan Wright was found slumped on a street suffering with knife injuries. He was pronounced dead a few hours later.
The killings come as figures from the Met Police show a 24 per cent rise in knife crime in London last year. Knife attacks had risen by a fifth, year-on-year figures revealed.
Since the five murders over the weekend, police have made a string of arrests and charges.
The Met charged two men, aged 17 and 18, in connection with the murder of Damien McLaughlin, 42, in Enfield.
In connection with Tuesday night's murder in Wandsworth, a 30-year-old man and 29-year-old woman were arrested in the early hours of Wednesday morning.