Girls as young as 12 are being sold for sex by organised gangs on the streets of Britain, Gerry Northam investigates for Panorama.

Unreported World highlights the tragic plight of Nepal's child widows, some of whom are as young as thirteen. Many face abuse and servitude for the rest of their lives, ostracised by their families and communities, and often forced to sell their bodies to provide food and shelter for themselves and their children.

Reporter Jenny Kleeman and director James Jones travel from Italy to Africa to reveal how human traffickers are using black magic to coerce and trap Nigerian women into a life of prostitution in Europe.