The United Nations mission in Mali has demanded an immediate release of President Bah Ndaw and Prime Minister Moctar Ouane.
This call came after reports that Ndaw and Ouane were detained by soldiers in a military camp in Kati near the capital, Bamako.
Reports also said that the Defence Minister, Souleymane Doucouré, has been detained by the mutineers.
The trio’s detention has raised fears of a second coup within a year in the impoverished West Africa country.
The detentions also came just hours after Ndaw reshuffle cabinet, which saw two senior army officers who took part in last year’s coup replaced.
The BBC reports that Ouane had told AFP in a phone call on Monday that soldiers “came to get him,” but the line was later cut off.
Mali is once again looking unstable just nine months after the military coup that saw President Ibrahim Boubakar Keïta removed from office, the BBC has said.
The African Union, the Economic Community of West African States, the European Union and the United States also condemned the arrests, saying Mali’s top politicians must be released without any preconditions.