The head of Niger's presidential guard, General Abdourahamane Tiani, appeared on Friday on state television as the president of the transitional council that seized power in a coup.
The guard instigated the coup on Wednesday and detained President Mohamed Bazoum in the presidential palace.
A group of soldiers, who later appeared on state television, said they had stripped Bazoum of power.
Colonel Amadou Abdramane, who announced the coup, said the military had acted in response to deteriorating security and bad governance.
Abdourahamane Tiani reiterated that soldiers seized power due to the worsening security. He also criticised the non-cooperation with military governments in Burkina Faso and Mali in the fight against insurgencies in the region.
Insecurity has remained a problem since Bazoum was elected in 2021 as miliants that took root in Mali in 2012 gained ground, killing thousands and displacing over 6 million across the Sahel.
Niger is a key ally of Western countries against insurgencies in West Africa and a number of foreign troops are based there, including French and American.
Australians voted on Saturday in a national election that polls show will likely favour Prime Minister Anthony Albanese's Labor Party over the conservative opposition, as worries about Donald Trump's volatile policies overshadowed calls for change.
At least six people were killed and 55 were injured in a stampede at an Indian temple in the western coastal state of Goa where hundreds of devout Hindus had assembled, police official said on Saturday.
Prince Harry said on Friday that he wanted reconciliation with the British royal family but his father King Charles will not speak to him over a row over his security and he did not know how long the monarch, who has cancer, would live.
A magnitude 7.4 earthquake struck Drake Passage between Cape Horn and Antarctica at a depth of 10 km (6 miles) on Friday, the United States Geological Survey said.