Audio: Abba Moro speaks to BBC Africa on efforts to rescue Chibok girls 50 days on

It's fifty days since more than two hundred girls were abducted from a school in Chibok, in north eastern Nigeria. Several countries are helping the Nigerian government to locate the girls. But how far have these efforts gone? FocusOnAfrica's Bola Mosuro spoke to Nigeria's interior minister Abba Moro.
Listen to the convo below.

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