A murder investigation has been launched after a teenager was fatally stabbed in west London.
Police were called at around 22.35pm on Friday to a fight and a seriously injured male at flats off Union Lane, Isleworth.
Officers attended and found a boy suffering stab injuries outside a block of flats.
They administered first aid before London Ambulance Service arrived but sadly the victim – believed to be a 17-year-old - was pronounced dead at the scene a short time later.
A post-mortem examination and formal identification will be arranged in due course.
Officers have begun the process of informing next of kin.
A Met Police spokesman said: "An urgent investigation is underway, led by detectives from the Homicide and Major Crime Command supported by colleagues from the West Area Command Unit.
"There has been no arrest at this early stage.
"Any witnesses or anyone with information that may assist police is urged to call 101 quoting CAD 8396/mar22. To remain anonymous call Crimestoppers on 0800 555 111.
"Young people can contact Fearless, who are part of the Crimestoppers charity. They cannot trace your call or I.P address, and they will not ask your name or for any personal details."
