Two teenagers charged with the murder of London schoolboy Paul Erhahon have appeared at Waltham Forest Youth Court.
Paul Erhahon was stabbed to death near his home
The boys, aged 15 and 17, were also accused of attempting to murder and inflict grevious bodily harm on Paul's 15-year-old friend.
Paul, 14, died on 6 April after being stabbed in Leytonstone, east London.
Two other boys, aged 14 and 13, have been charged with his murder. All four suspects were remanded in custody to appear at the Old Bailey on 24 April.
Detectives have also arrested a 19-year-old man and two boys, aged 14 and 15, who have all been bailed until June.
Paul was the seventh Londoner aged under 16 to be murdered since the end of January.
He died from a stab wound to the heart after he was attacked in the foyer of a block of flats.
Paul was a pupil at Kingsford Community School in Beckton, east London - the same school attended by 15-year-old Adam Regis, who was stabbed to death last month.