It is unclear who carried out the attack, but the area is overrun by groups with links to Al Qaeda and Daesh.
Army spokesman Azem Bermandoa Agouna tallied "several hundred rebels neutralised (and) 66 taken prisoner" while six soldiers were killed.
Fresh fighting in western Chad pits Libya-based rebels against forces loyal to a new military junta led by deceased President Deby's son.
The oil-rich African nation has become a key regional ally of the West in the fight against militants.
Unidentified assailants attacked people attending a funeral at a cemetery, before going on to the village where they "shot at everyone they saw," an official says.
Fire in capital Niamey burns 21 classrooms in straw huts, killing 20 children, officials say.
Niger's human rights commission calls for independent investigation into alleged crimes against women and confiscation of properties by Chadian soldiers deployed in the country to fight militants.
Mohamed Bazoum's inauguration as president marks first-ever transition between elected presidents in the African country's six decades of independence from France.
"Rogue" military unit tries to seize presidential palace in capital Niamey days before the historic inauguration of Mohamed Bazoum as president, sources say.
The attack comes days after gunmen killed 137 people in coordinated raids on villages in the southwest, one of the deadliest days in recent memory in a country ravaged by violence.
Government spokesman Abdourahmane Zakaria confirmed that the latest killings took place on the same day Niger's Constitutional Court officially declared Bazoum as the winner of February's election.
A new generation of Black and Afro-Iranians are revitalising their distinct histories and culture.
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