This is the moment a gang of five children launch a violent 20-minute attack on a grown man.

Shocking footage captures the moment the man was kicked, punched, stamped on and dragged to the floor by one of the gang.

The attack which happened at around 6.45pm on Tuesday may have lasted up to 20 minutes.

A gang of children approach a grown man in a street in Bradford, West Yorkshire, before carrying out a sustained attack

CCTV footage captures the moment the man is dragged to the floor by his arm by one of the youths

Footage shows the gang stamping on the victim and kicking him in the head during the assault on Tuesday

One gang member kicks the unknown man in the head as he sits in the street, as two other youths watch on

CCTV pictures the man being punched and kicked in the body and head.

Andrew Britton, who captured the incident on his CCTV, said the man was left dazed on the road when the gang fled the scene.

The 46-year-old carer said: 'I was shocked when I saw this, this wasn't late at night, this was tea-time. People were coming home from work.

'It makes me feel physically sick when you watch, I mean these aren't teens they are children.

Andrew Britton, who captured the incident on CCTV, says the gang (pictured) were all aged around 13

'I'd say at a guess they'd be about 13 and that's a grown man they are attacking.

'Its a horrendous attack that these, obviously, children will attack a grown man and they're not scared, they're not bothered they could get caught for it

'I didn't hear any of this going on, it was only when my neighbour came round and asked if I could check by CCTV that I saw it.'

Andrew, who has lived in the same street in Bradford, West Yorkshire, for 42 years, said the main reason he released the footage is that no one - not even the victim - has come forward about the incident.

One youth continues to stamp on the man's head, while others watch on and another runs from the scene

The father-of-two said: 'It was a 20 minute assault, the man could have serious head injuries.

'I think it's my duty to expose this, I think it is everyone's duty to do the right thing.

'Justice is never going to be done because they are just kids, but firstly we need to make sure that bloke is OK and, secondly, if the police can't prosecute the kids they should find them and put a good scare into them.'

The police were called by Andrew shortly after he watched the footage but he says they didn't pick up the video until nearly 48 hours after he contacted them.

The gang of youths surround the man on the floor as they continue their attack. The victim is described as being white and was wearing a white top and light trousers

West Yorkshire Police force apologised for not collecting the footage sooner.

Sergeant Az Khan, of Bradford South Neighbourhood Policing Team, said: 'The call we received was not in relation to a crime in progress and was allocated accordingly.

'We apologise that we missed the first appointment arranged with the caller but he was visited this afternoon and the CCTV collected which will now be reviewed.

'We have recorded a crime but at this stage we have not had a victim come forward or any other calls reporting any incident at the location.

'We would urge the victim or anyone else with information about this offence to please come forward.'

West Yorkshire Police said the victim was described as a white man, about 5ft 8ins tall, wearing a white top and light coloured trousers and the suspects are believed to have ran off towards Ewart Street.