Police were called to a fight at 8.34am this morning in Blyth Road, Hayes. A statement issued by the Met said: “Officers attended the location and found a 15-year-old boy suffering from multiple stab wounds.
“Colleagues from the London Ambulance Service and London’s Air Ambulance (LAS) also attended and despite their efforts, the teenager sadly died at the scene.
“A post-mortem examination will be held in due course. Formal identification has not taken place.
“A crime scene has been established and cordons remain in place at this time.
“Police have detained a suspect – no further details at this time.”
An LAS spokesman said: “We were called at 8.34am today (11 June) to reports of a stabbing on Blyth Road, UB3.
“We sent two ambulance crews, a medic in a car, and an incident response officer.
“We also dispatched London’s Air Ambulance.
“Sadly, a teenager died at the scene.”
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Former shadow chancellor John McDonnell, MP for Hayes and Harlington, tweeted: “If anyone can assist the police with any information on this tragic incident, I urge them to come forward.”
Yesterday saw stabbings in Clapham, Harrow and Streatham, with the latter tragically proving fatal for the victim.
Four men and three women are in custody in relation to the Streatham attack.
Scotland Yard said the arrests were made on “suspicion of various offences”.
In recent weeks the Capital has also seen flower seller Tony Eastlake stabbed to death in Islington, and Black Lives Matter activist Sasha Johnson shot in the head at a party in Peckham.
The 27-year-old remains in intensive care.
London Mayor Sadiq Khan yestgerday tweeted a video in which he talked of his visit to meet officers from the Met’s Violent Crime Task Force.
In it he said: “Keeping Londoners safe is my top priority.
“I am going to be going out tonight with the Violent Crimes Task Force, that is funded by City Hall, to see for myself the work they are doing to try to keep Londoners as safe as possible.”
He added: “I’m determined to use all the powers and resources I have to be both tough on crime, and tough on the causes of crime as well.”
Anyone who witnessed the Hayes incident or has information is being asked to call police on 101 or Tweet @MetCC quoting reference Cad 1681/11Jun.