British officials report an increase in human trafficking into Britain, with many victims arriving from Nigeria and being forced into domestic slavery or prostitution.

Official figures show more than 2,000 suspected trafficking victims were reported to authorities in 2014 including 244 from Nigeria.

This represents a 31 percent increase in Nigerian victims compared to the previous year.

Kevin Hyland, Britain's anti-slavery commissioner, told the BBC Wednesday the actual figures are much higher.

He says many are lured into Britain with false promises and then stripped of their identity documents and made to work as domestic cleaners or sex workers.

Other cases have involved agricultural workers and people on fishing boats.

Britain's Home Office said in December there are between 10,000 and 13,000 potential victims of slavery in Britain.