This is the moment a bull terrier attacks children in a playground and mauls one of them on the ground before a teacher chases it away.

The incident took place of the city of Nizhnevartovsk in Khanty-Mansi Autonomous Okrug in central Russia and was recorded by CCTV cameras.

In the video, two girls can be seen playing when the white bull terrier gets through a hole in the fence and start jumping up and following them aggressively.

The bull terrier targets the girl in the pink coat who tries to run away as the dog chases her in the park in Nizhnevartovsk, central Russia

The dog then begins climbing on her and bites at her head and hair (pictured) as her friend calls for help

The dog starts by targeting a girl in a brown coat who does not run away meaning the hound quickly loses interest.

He then switches his attention instead to a girl in a pink coat who tries to run away.

The dog then turns and sprints towards her and when the terrier reaches her she is knocked to the ground.

The dog then begins climbing on her and bites at her head and hair as her friend calls for help.

A group of other children run over to the scene followed by a sprinting teacher.

The teacher (in the yellow coat) tries to protect the children who hide behind her as the dog continues its rampage

The footage ends with the girl following two boys in climbing a fence to safety (pictured) as the dog still tries to follow them

The female teacher beats the dog off the girl with a shoe and it then sprints after the other children who it sees running away.

The bull terrier is then filmed running from one child to the next, including attempting on several occasions to return to attack the girl in the pink coat.

The footage ends with the girl following two boys in climbing a fence to safety.

Local media reported that all the victims are aged between 10 and 11.

The aggressive bull terrier had managed to slip away from the flat where it lives, when his owner, 43, whose name has not been reported, left the door open.

All the children involved in the attack have recovered and were provided with vaccination shots after the attack, according to reports.

The dog's owner was handed an administrative fine for 'walking a dog without a lead and muzzle' after local police downplayed the incident saying the dog had caused no serious harm.

Many were quick to criticise the punishment.

Netizen Koks said: 'Do you think this fine is representative for what this dog did? I would have given her a much tougher punishment, only then she will start being responsible for her actions.'

'Dilman78' added: 'I think this dog needs to be put to sleep.'