etectives have launched a murder investigation after a teenager was fatally stabbed on a bus carrying school children home in east London.
The victim, 16, was knifed onboard the bus in High Road, Chadwell at 3.55pm on Monday.
Police officers found the boy suffering a stab injury and he was taken by paramedics to hospital in a life-threatening condition.
He died in hospital overnight and a post mortem will be held.
Scotland Yard said his next of kin are aware.
An 18-year-old man was arrested nearby on suspicion of attempted murder. He remains in custody.
A crime scene remains in place with large swathes of the high road closed off.
Anyone with information is asked to call police on 101 quoting CAD 4741/14Mar. To remain anonymous contact the independent charity on Crimestoppers on 0800 555 111.