Tears of joy as Chibok girls reunited with families

People have been celebrating the release of 21 Nigerian schoolgirls kidnapped by Islamist militants in the town of Chibok who have now been reunited with their families.

The girls were held for more than two years by the Boko Haram.

Officials say the militant group is still holding almost 200 other girls who were abducted at the same time.

Martin Patience reports from Abuja.