Africa/UK: Slavery fears for 'lost' children

There are fears that large numbers of children may be trafficked into Britain after police discovered up to 30 had been "lost". The BBC has learnt the Metropolitan Police investigation looked at children who came through Heathrow Airport with adults who were not their parents. Until recently few checks have been made by immigration at the airport. Campaigners fear thousands of children are being used as domestic slaves after being brought into Britain. The vast majority of the children were from Nigeria, which is well known among law enforcement officials as being the main source for trafficked children into Britain.