Residents who witnessed the incident have said that militants killed 50 villagers, two soldiers and one police officer after raiding a village in northwest Nigeria.
The former president was found dead in his home, after reports of being in declining health since his forced resignation in August 2020.
Leaders from the Economic Community of West Africa States agreed to sanction Mali last week over delayed elections.
Nigeria ends its suspension of Twitter after banning the social media giant in June in a dispute over a tweet by President Muhammadu Buhari.
The denouncement comes after a regional grouping decided to freeze Mali's assets, a pressure tactic against the ruling junta amid concerns over the future of democracy in the West African country.
ECOWAS leaders have decided to close borders with Mali and impose economic sanctions in response to an "unacceptable" delay by the country in holding promised elections.
At least 200 people have been killed and more than 10,000 victims rendered homeless after their homes were razed by the bandits while scores are still missing.
Around 200 people have been killed in Nigeria’s troubled northern region, according to witnesses, as authorities continue to search for bodies and for suspects of the three-day violence.
As of December 31, 3,280 institutions, or 13.09% of the country's schools, had been closed, affecting 511,221 students.
Designation will mean tougher sanctions under the terrorism prevention act for suspected bandit gunmen, their informants and supporters, such as those caught supplying them with fuel and food.
Security forces have been conducting operations in the African country's northwest to crack down on gangs and cartels that target regional provinces for looting and mass abductions.
Mali's transitional government initially agreed to hold elections in February 2022, but the military junta now says return to civilian rule may take up to five years due to security issues.
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