GOOGLE STREETVIEW The incident took place at the Sydney Russell School

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The victims were taken to an east London hospital following the incident at the Sydney Russell School in Dagenham. Police and paramedics were called to the disturbance between the pupils at around 2.11pm on Wednesday amid reports a "noxious substance" had been used. Two of the victims have since been discharged from hospital, while the three suspects, boys aged 12, 13 and 15, remain in custody on suspicion of causing grievous bodily harm.

GETTY Police were called to the disturbances around 2.11pm

We treated three patients at the scene and took them to a hospital in north-east London London Ambulance Service spokeswoman

A London Ambulance Service spokeswoman said: "We treated three patients at the scene and took them to a hospital in north-east London. "Three other patients were all also treated at the scene but did not require hospital treatment." The Metropolitan Police have appealed for witnesses.

GETTY The victims were taken to an east London hospital

A Scotland Yard spokesperson said: "Officers from Barking and Dagenham are investigating after three teenagers were injured at an east London school. "Police were called by the London Ambulance Service to Sydney Russell School in Parsloes Avenue, Dagenham, at 2:11pm on Wednesday, 22 February to reports of a disturbance involving youths where a noxious substance had been used. "Three people, believed to be two females and one male, were taken to an east London hospital for treatment; two have since been discharged.

GETTY A Scotland Yard spokesperson said that officers are investigating