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Met Police
A 17-year-old boy has died after being stabbed in London's West End.
Jeremy Menesses was stabbed on Market Place near to Oxford Street at about 17.30 BST on Saturday.
The Met said the stabbing took place "following a fight between a number of males" which had been "witnessed by a large number of horrified onlookers".
Three men, all aged 18, were arrested on suspicion of murder after they arrived at a hospital with minor stab injuries. All remain in custody.
Two of them have also been held on suspicion of assisting an offender.
The victim, who lived in south London, was taken to hospital for treatment, but was pronounced dead at 19:30.
Supt Rob Shepherd said people in the West End would see an "increased police presence" following the "shocking incident".
Det Ch Insp Katherine Goodwin said police had "spoken to a number of people already but need anyone who has information, video or images to speak to us and tell us what they know".
London Mayor Sadiq Khan described the killing as a "tragic death" and "another senseless loss of life".
"My heart goes out to his family and friends," he added.