In April 2015, Nkurunziza announced that he would seek a third term in office. The opposition said that Nkurunziza's bid to extend his term was in defiance of the constitution, as it bars the president from running for a third term. However, Nkurunziza's allies said his first term did not count as he was appointed by parliament and not directly by the people. On April 26 police clashed with demonstrators protesting Nkurunziza's announcement that he would seek a third term in office. At least six people were killed in the first two days of ongoing protests. The government shut down multiple radio stations and arrested a prominent civil society leader, Pierre-Claver Mbonimpa. UN General Secretary Ban Ki-moon said, in a statement, that he had despatched his special envoy for the region, Said Djinnit, to Burundi for talks with Nkurunziza. African Union commission head Nkosazana Dlamini-Zuma said she welcomed a decision by Burundi's Senate to ask the Constitutional Court to rule whether Nkurunziza could stand for re-election. More than 24,000 people fled Burundi in April, as tensions mounted ahead of presidential elections in June, the UN refugee agency said.