The United Nations mission in Mali has called for the "immediate and unconditional" release of the country's president and prime minister, who were detained by the military on Monday and later stripped of their powers.
The UN's MINUSMA mission said on Twitter that those who hold the leaders will have to answer for their actions.
United Nations Secretary-General Antonio Guterres called for calm and for Mali's civilian leaders to be released.
"I am deeply concerned by news of detention of civilian leaders of the Malian transition," Guterres said on Twitter. "I call for calm & their unconditional release."
The European Union and the African Union also condemned the arrests of President Bah Ndaw and Prime Minister Moctar Ouane.
Mali's powerful interim vice president, Colonel Assimi Goita, said on Tuesday that he ousted the interim president and PM because they failed to consult him about the nomination of a new government, violating the country's transitional charter.
Monday's detentions raised fears of a second coup as Ndaw and Ouane led an interim government that was installed after a putsch in August under the threat of regional sanctions.
Goita, who led the August coup that overthrew then-President Ibrahim Boubacar Keita, said in a statement that elections next year to restore an elected government would go ahead as planned.
Two senior officials, who declined to be named, told AFP that soldiers had taken Ndaw and Ouane to the Kati military camp on the outskirts of the capital Bamako.
Their detentions followed a sensitive government reshuffle on Monday afternoon, which was designed to respond to growing criticism of the interim government.
The military kept the strategic portfolios it controlled during the previous administration in the reshuffle.
But two coup leaders – ex-defence minister Sadio Camara and ex-security minister Colonel Modibo Koné – were replaced.
The reshuffle also came at a time of growing political challenges in the capital Bamako, and pressure to stick to the deadline for promised reforms.
Unconfirmed rumours of a potential coup were swirling around Bamako, but the city remained relatively calm.
Briefly reached by phone before the line cut, Ouane told AFP that soldiers "came to get him".
A joint statement signed by the UN, AU, ECOWAS, the EU, the US and the UK on Monday condemned the arrest of the politicians and called for their "immediate and unconditional liberty".
'Send a message'
Young military officers ousted former president Ibrahim Boubacar Keïta on August 18 after weeks of protests concerning perceived government corruption and his handling of Mali's jihadist insurgency.
After the 15-nation West Africa bloc ECOWAS threatened sanctions, the military junta handed power to a caretaker government that pledged to reform the constitution and stage elections within 18 months.
Coup leader Goita was appointed as vice president of the caretaker administration, and the interim president, Bah Ndaw, is a retired army officer.
Many have doubted whether the military-dominated government has the will, or the ability, to stage reforms on a short timescale.
Among other problems, the vast nation faces a major logistical and security challenge, as swathes of territory are in the hands of jihadists.
Doubts remained despite the interim government last month pledging to hold a constitutional referendum on October 31, with elections to follow in February next year.
On May 14, amid growing anger, the government then said it would appoint a new "broad-based" cabinet.
An official at Mali's interim presidency, who requested anonymity, said the reshuffle was designed to send a message that "respect for the transition deadline remains the priority".
He also underscored the necessity of replacing the defence and security ministers.
"They are not emblematic figures of the junta," the official said, referring to the newly appointed ministers.
Political feuding
In an example of mounting unease, the opposition M5 movement -- which spearheaded protests against Keïta in 2020 -- this month urged dissolving the interim government and demanded a "more legitimate" body.
But the M5 is divided. Two members of the Union for the Republic and Democracy party, for example, were appointed interim ministers Monday. The party is part of the M5.
Civil disputes in Mali are also adding to the pressure created by political feuding.
The country's largest union, UNTM, called a second week of strikes Monday after pay negotiations with the interim government collapsed.
(FRANCE 24 with AFP and REUTERS)
