Police investigating the murder of a teenager who was stabbed to death after fleeing from a gang of youths have arrested a 43-year-old man.
Danny O'Shea, 18, was stabbed to death on Friday night near his home in Gill Avenue, Newham, east London. A post-mortem examination revealed the teenager died of a stab wound to the neck.
His mother Julie Brewer has said it was not a "racially motivated" attack.
"We are devastated by what has happened to Danny and we are still trying to come to terms with it," she said. "We do not know why such a terrible thing happened, but what we do know is that this is not racially motivated as Danny was a popular boy with friends from all cultural backgrounds.
"We do not want to see any local retribution and just urge anyone with any information to come forward to the police."
A 43-year-old man has been arrested in connection with the investigation, police said. He remains in custody at an east London police station.
Detectives are also trying to find out more information about a white Ford Transit minibus that was in the area.
Detective Chief Inspector John Macdonald, from the Metropolitan Police's Homicide and Serious Crime Command, said: "The investigation is fast-moving. Officers have arrested a man early this morning in relation to the murder and other arrests are expected to follow in the coming days.
"We are keeping an open mind regarding the motive for the attack, however, I wish to reinforce the family's position that there is nothing to suggest Danny's murder is racially motivated."
Mr Macdonald thanked members of the community who had come forward with information and urged others to do the same, adding: "I am particularly interested in sightings of a white Ford Transit minibus that was in the vicinity of Butchers Road between 6pm and 6.20pm on Friday evening."