FIVE people have been treated by emergency services and seven cars were damaged in a major incident.
Horrified parents watched in horror as youngsters on a moped threw a substance over the vehicles in Corby, Northamptonshire.
Armed police and ambulance crews rushed to the Burghley Road playing fields at 6.30pm on September 18.
Young people had been arriving to train with Hellenic Fisher FC at the time, the Northamptonshire Telegraph reported.
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