Nigeria: UN says Boko Haram conflict leaves 50,000 children at risk of starvation

The UN issues a warning over the humanitarian situation in parts of northern Nigeria recently freed from Boko Haram militants. Also, our reporter gains rare access to the iconic Malian city of Timbuktu, as it celebrates the end of the Muslim holy month of Ramadan. And in Senegal, NGOs express their concern as authorities begin an operation to clear thousands of street children from the Dakar region.