Nigeria’s President Muhammadu Buhari and Liberian President Ellen Johnson Sirleaf discuss during Gambia election crisis mediation in Banjul

Nigeria’s President Muhammadu Buhari and Liberian President Ellen Johnson Sirleaf discuss during Gambia election crisis mediation in Banjul

Nigeria's President Muhammadu Buhari and Liberian President Ellen Johnson Sirleaf discuss during Gambia election crisis mediation in Banjul, Gambia December 13, 2016 REUTERS/Stringer

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