A 15-year-old schoolboy has been stabbed to death in front of classmates, sparking a murder probe.
Quamari Barnes, who was due to take his GCSEs this year, was attacked in Willesden, north-west London, shortly after leaving school on Monday afternoon.
It is believed Quamari had headed to a bus stop where he was approached and threatened with a knife.
The boy attempted fleeing back to the school but was caught and stabbed repeatedly - in front of classmates who tried to help him.
Despite being taken to hospital, Quamari died from his injuries later that day.
Met Police have now launched a murder inquiry.
Anyone with information is urged to contact police via 101 or by tweeting @MetCC. They can also contact Crimestoppers anonymously on 0800 555 111.