Birmingham, a city and metropolitan borough in the West Midlands county of England, has been pinpointed as the sex capital for child prostitution.
Foreign sex gangs are using it as a base to pimp children as young as 12.
At least 100 Birmingham kids, mainly girls, are thought to be trapped by foreign and some home-grown gangs determined to hand them around for sex with older men.
The sex gangs then pimp them out for their own perverted pleasure at as little as 10 pounds a time.
"We worked with 100 young girls last year and five boys, but that doesn't mean there were only 105 children who were at risk," the Daily Star quoted a spokesman for children's charity Barnardo's as saying.
"We need more centres to provide the kind of help and support children are able to access in Birmingham," he added.