Colonel Mamady Doumbouya, leader of the military coup in Guinea that saw President Alpha Condé overthrown, sworn in as interim president.
The ceremony held at the presidential palace and was attended by only those who have been invited.
Col Doumbouya who led the military junta has accused Alpha Conde of rampant corruption, human rights abuses and mismanagement and has promised to put an end to it.
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Colonel Mamady Doumbouya is expected to form a government in the coming weeks.