At least 1,400 children were subjected to "appalling" sexual exploitation in Rotherham between 1997 and 2013, a report has found.
Children as young as 11 were raped by multiple perpetrators, abducted, trafficked to other cities in England, beaten and intimidated it said.
The report was commissioned by Rotherham Borough Council in 2013.
Five men from the town were jailed for sexual offences against girls in 2010.
'Doused in petrol'
Professor Alexis Jay, who wrote the report, said there had been "blatant" collective failures by the council's leadership, senior managers had "underplayed" the scale of the problem and South Yorkshire Police had failed to prioritise the issue.
She also found the majority of perpetrators were of Pakistani heritage.
Prof Jay said: "It is hard to describe the appalling nature of the abuse that child victims suffered."
She said she found examples of "children who had been doused in petrol and threatened with being set alight, threatened with guns, made to witness brutally-violent rapes and threatened they would be next if they told anyone".