GETTY Trafficked and unaccompanied asylum-seeking children are vanishing from care in Britain

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More than 750 children so far have been admitted after the camp was demolished in October. But experts warn of scores being dragged into prostitution, crime and modern-day slavery. A 16-year-old who disappeared from care in Croydon, south London, has already been discovered by police working as a prostitute. Charity workers warn she is “the tip of the iceberg”. The widespread use of social media makes the problem worse as the minors are chased by the people who trafficked them.

Children are then forced to raise money to pay them back. David Simmonds, chairman of the Local Government Association asylum, migration and refugee task group said yesterday that absconding was “a big problem”. About 100 councils are housing refugees aged 16 and 17 in accommodation with limited adult input and they were “free to disappear”, he warned.

GETTY More than 750 children so far have been admitted after the camp was demolished in October

In other cases, children are joining family members who are “not in a position to take them”.

Children are joining families who are not in a position to take them David Simmonds

He also said that many who claimed to be under 18 were actually older and “age assessments” were under way. Mr Simmonds said only a third would be found to be genuine and the majority were older than claimed. The 750 minors have been admitted either under the Dublin Regulation because they have family links or under the Dubs amendment to give refuge to those stranded in Europe.

Migrant 'children' from 'Jungle Camp' arrive in the UK Wed, October 19, 2016 Migrant 'children' from the 'Jungle Camp' in Calais arrive in the UK to be reunited with relatives. Play slideshow 1 of 26

GETTY Experts warn of scores being dragged into prostitution, crime and modern-day slavery