A wealthy Nigerian politician and his family plotted to bring a street trader from Nigeria to Britain and pay him a few thousand pounds to donate his kidney for a transplant for his ill daughter, reports say.

The hospital that carried out the surgery says they had experienced difficulty 'maintaining a balance between his immunosuppression and controlling his infection'.

About 110,000 Americans are currently waiting for an organ transplant, and more than 6,000 patients die each year before getting one, according to organdonor.gov.