The schoolgirls, aged between 15 and 18, were kidnapped on Monday in a mass abduction blamed on fighters belonging to Boko Haram, a group
that has killed thousands of people in a campaign to create an Islamic state in Nigeria.

The girls were taken from a boarding school in Chibok, a town in the north-east of the country, and are believed to be in the hands of the militants.

The abduction has sparked international outrage