"The call came on the first category of urgency, the nearest brigade immediately left for the scene. The doctors arrived after 8 minutes. The boy had died before the ambulance arrived," said the report.
Zhibek Zholdasova, one of the mothers, wrote in the social network " my son, his team mate went through a terrible stress".
"Their mate died before their eyes. It happened in the time of training. My son said they did not have any loads on that day, they had a warming-up and played afterwards. The boy suddenly fell down and died. Two brigades of doctors arrived but they could not save him. The teenagers are aged 13-15, the parents are required to provide medical certificate. All the boys have medical certificates, we even made an ultrasound examination of heart to our son," she said.
Police are investigating the accident.
Photo source: picture from an open source