Eight-year-old child received serious injuries in the incident, which occurred last Friday, January 10, in the city of Dunhuang in the Chinese province of Gansu.
recordings made by a surveillance camera, can be seen as one of the students out of mischief threw a firecracker in the hole for the manhole.
as a result of this foolish action occurred detonation of gas accumulated in the manifold. Explosion was such force that the metal lid flew up a few meters.
As reported by Chinese media, the victim was placed in intensive care. Currently, threats to his life there.