Boy flies through the air after throwing firecrackers into sewer

The boy was left with bruising to his face and a flesh wound on his leg after the incident. Credit: CCTC

An exploding manhole cover launched a boy into the air after he threw a lit firecracker into a sewer and triggered a blast in central China.

Surveillance video at a residential community in Henan Province shows the boy, accompanied by an adult and two younger children, tossing two lit firecrackers into the manhole and seconds later being blasted about two metres into the air.

Two manhole covers were launched more than three metres high during the stunt.

The boy was left with bruising to his face and a flesh wound on his leg after the incident. Credit: CCTV

The boy was dazed by the explosion and was left with bruising on his face and a flesh wound on his leg.