On 11 January 2014, Michael Djotodia and Nicolas Tiengaye resigned as part of a deal negotiated at a regional summit in neighboring Chad. Catherine Samba-Panza was elected as interim president by the National Transitional Council, becoming the first ever female Central African president. On 23 July 2014, following Congolese mediation efforts, Séléka and anti-balaka representatives signed a ceasefire agreement in Brazzaville. By the end of 2014, the country was de facto partitioned with the anti-Balaka in the southwest and ex-Seleka in the northeast. In March 2015, Samantha Power, the U.S. ambassador to the United Nations, said 417 of the country's 436 mosques had been destroyed, and Muslim women were so scared of going out in public they were giving birth in their homes instead of going to the hospital. On 14 December 2015, Séléka rebel leaders declared an independent Republic of Logone.