The Economic Community of West African States (ECOWAS) has suspended Mali’s membership in response to last week’s coup by Colonel Assimi Goita.
It also insisted the military junta must stick to the February 2022 deadline for a return to democracy.
The decisions were taken on Sunday by leaders of the 15-member economic bloc at an emergency summit held in Accra, the Ghanaian capital.
But ECOWAS did not announce new sanctions against the military regime.
The meeting was called to agree a response to the Malian military’s ouster of a president and prime minister for the second time in nine months.
Mali’s neighbours and international community fear the latest revolt will jeopardise a commitment to hold a presidential election next February, and undermine a regional fight against Islamist militants.
In a communiqué after the summit, ECOWAS said Mali’s membership in the bloc was suspended with immediate effect.
However, it did not announce sanctions like those it imposed after the coup last August, which saw members temporarily close their borders with landlocked Mali and halt financial transactions.
It also did not call for new interim President Assimi Goita to step down. The army colonel, who led the August coup and last week’s revolt, was declared president on Friday.
Instead, ECOWAS said a new civilian prime minister should be nominated and a new inclusive government formed to proceed with the transition programme.
“The date of 27th February 2022 already announced for the presidential election should be absolutely maintained,” the leaders’ communiqué said.
There was no immediate response from Goita, who attended the summit.
Goita, a 38-year-old special forces commander, was one of several colonels who overthrew President Ibrahim Boubacar Keita last year.
He ordered the arrests last Monday of interim President Bah Ndaw and Prime Minister Moctar Ouane. Both resigned on Wednesday while still in detention. They were later released.
ECOWAS and Western powers including France and the United States worry the political crisis could exacerbate instability in northern and central Mali, a home base for regional affiliates of al Qaeda and Islamic State.