The attacks were the deadliest since the August 18 military coup that overthrew President Ibrahim Boubacar Keita, and came just days after scores of jailed militants were freed by the interim government in a prisoner swap.
The announcement came after several days of uncertainty about the release of the pair, who were believed to have been held by al-Qaeda-affiliated militants.
The crippling sanctions on landlocked Mali were lifted following the nomination of retired Colonel Bah Ndaw as interim president, and Moctar Ouane as prime minister of the transition that is expected to last 18 months.
Following the bloodless August 18 coup that toppled president Ibrahim Boubacar Keita, the junta has vowed to relinquish control and hold fresh elections.
Several African activists want stolen African artefacts housed in French museums returned to their countries of origin. But France sees things a bit differently.
The appointment of a civilian prime minister was a major condition imposed by the West African regional economic bloc on Mali to lift sanctions that were imposed after an August 18 coup.
Bah N'Daw, who also served as defence minister in 2014 and previously headed the air force, has been described by former colleagues as "principled."
Junta leader Colonel Assimi Goita, announcing the appointment of former defence minister as interim leader, says he himself would serve as vice president of the transition government.
West African leaders gave a junta a one week ultimatum to appoint a civilian to leader for Mali, a spokesman for the military group leading the country said Wednesday.
Mali's neighbours are anxious to avoid the fragile Sahel state spiralling into chaos.
The opposition group says the key ideas discussed during the talks has been left out of the final document while others have been added in.
The charter ratified by participants in the talks says the interim president can be a civilian or a soldier.
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