"The Secretary-General is shocked and outraged by reports that at least 134 civilians, including women and children, have been killed", Farhan Haq, a spokesman for UN Secretary-General Antonio Guterres, said in a statement.
The Saturday ambush is not the first time a wave of violence has struck the Fulani community, which the BBC describes as a "largely Muslim ethnic group of semi-nomadic herders".
Earlier he had reported the deaths of around 50 people, but warned the toll could rise because many people were unaccounted for.
According to eyewitnesses, the assailants attacked Ogossagou at dawn, when most of the villagers were still asleep.
Ogassogou (Mali) (AFP) - Malian President Ibrahim Boubacar Keita vowed Monday to beef up security as he visited a village where more than 130 people were killed by suspected militiamen from a rival ethnic group.
Jordan Peele's "Us" Sets Opening Weekend Record for Original Horror Film
It also shattered the benchmark set by Peele's directorial debut Get Out , which opened with US$33 million in 2017. Since its debut at the South by Southwest Film Festival, "Us" has continued to build up enthusiastic word of mouth.
The village of Ogossagou, the main focus of the attack, was burned down and its chief killed, said Bankass Mayor Moulaye Guindo.
"It's a massacre, they attacked the village killing over 100 people and injuring dozens", said Bara Sankare, a Fulani leader in Mopti.
Witnesses also told AFP that almost all the huts in the village had been burned down.
Mali's President has reportedly fired two generals and disbanded a vigilante group suspected of being involved in the latest attack.
"Mali's children are paying the highest price for the intensifying violence in central Mali".
Yassine Belattar placé en garde à vue
Mediapart , qui a enquêté sur les faits reprochés à Yassine Belattar , a révélé certains des propos de l'animateur radio. En février 2018, il avait été interpellé aux Mureaux pour "outrage sur personne dépositaire de l'autorité publique".
German Bundeswehr troops are stationed in the northeastern city of Gao as part of the United Nation's MINUSMA peacekeeping force. A group led by radical Islamist preacher Amadou Koufa has recruited mainly from the Muslim Fulani community. The region, though, has been destabilized in recent years along with much of central Mali.
After the attacks the government announced that the commanders of the Malian military would be changed.
Jihadist raids remain a persistent threat, and in the centre of the country, an ethnic mosaic, the attacks have had a bloody impact on groups with a history of rivalry.
Despite jihadists being driven out by a French-led military operation in January 2013, current efforts by UN peacekeepers and the creation of a five-nation military force, extremist violence in the region continues unabated.
House Democrats FAIL in their attempt to over ride Trump's first veto
Attorney General William Barr leaves his house after Special Counsel Robert Mueller found no evidence of collusion between U.S. McCabe has said he anxious investigations into Trump's Russian ties and possible obstruction of justice would be shut down.