Niger men on selling brides 'to survive'

The African Union has launched a campaign to eradicate child marriage from the continent, saying 14 million underage girls a year should be given back their future.

Nine out of ten countries with the highest rates of child marriage are in Africa.

The UN say the practice is on the rise and if unchecked 50 million girls are at risk of being married before their 15th birthday this decade.

The BBC's special correspondent Fergal Keane reports from a remote region of Northern Niger.