unregulated

But the rapid urbanisation has also exposed Mogadishu to infrastructure challenges - it lacks a proper sewage system and unregulated borehole drilling risks depleting groundwater reserves.

"To be told as parents that children are fighting in unregulated and unsanctioned fights and we don't know – it's shocking," said Mr Eastwood.

"The holiday park sector... is essentially an unregulated sector," says Hugh Preston KC, a lawyer currently representing a group of about 1,200 caravan owners taking legal action against holiday parks.

The Isles of Scilly Council says other options are available, including cheaper host families but campaigners are concerned about the safety of children living in unregulated accommodation.

CNN lawyers argued that the term “black market” was used to describe an unregulated activity, even though the dictionary definition describes it as illegal.