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Three people have been arrested after a 14-year-old boy was stabbed to death on a double-decker bus in south-east London.
Kelyan Bokassa was pronounced dead shortly after being attacked on the 472 in Woolwich on 7 January.
Two boys aged 15 and 16 were arrested on Wednesday on suspicion of murder, and a 44-year-old woman was arrested on suspicion of assisting an offender.
All three remain in custody, the Met Police said.
DCI Sarah Lee, who is leading the investigation, said the arrests marked a “significant step forward”.
“We continue to appeal for anyone with information about Keylan’s murder to come forward and speak to us,” she added.
Police were called at 14:28 GMT on 7 January to reports of a stabbing on a bus in Woolwich.
The incident occurred on a Route 472 bus on Woolwich Church Street near the junction with the A205 South Circular Road.
