The boy was electrocuted and went into cardia arrest. The ambulance service said: "He is in a potentially life-threatening condition. The quick response from school staff and paramedics gave him the best chance of survival".
More top news
Cloudy but clearing overnight : Sunday evening's weather for the east of the region
Sunday evening's weather forecast for the west of the region
The Common People Festival had big crowds, good weather and Fat Boy Slim to bring 12 hours of music to a finale at the end of the first day