Traditional hunters have killed 32 civilians in an isolated village in central Mali, a local group says.
The hunters, known locally as "Dozo", surrounded the village in the Mopti region and separated members of the Fula ethnic group from the other villagers before killing them.
Children were among the victims in Saturday's attack, an official said.
There has been increasing violence between Fula, who are traditionally herders, and other ethnic groups.
A further 10 people were missing from the village, near the town of Djenné, said Abel Aziz Diallo, president of Tabital Pulaaku, a Fulani association.
"They surrounded the village, separated the Fula people from the others and killed at least 32 civilians in cold blood," he told AFP news agency.
The Fula complain that they are being regularly targeted by traditional hunters in the name of the fight against jihadists. They accuse the Malian military of supporting such incidents.
The Malian army has also been accused by rights groups of carrying out extrajudicial killings in the central region. The army says these were operations against militants.
On Thursday the US asked Mali to investigate after 25 bodies were found in mass graves in the Mopti region. The Malian government admitted elements of the army were involved.
Fifa has appointed a normalisation committee to run the affairs of the Malian Football Association (Femafoot).
A statement from football's world governing body explains the decision "follows the current deadlock affecting Femafoot and comes after two missions to Bamako dispatched by Fifa and Caf."
The new committee's main task will be to hold elections for a new Femafoot executive committee before 30 April 2018.
Mali were banned from global football for six weeks earlier this year for government interference into the running of football in the country.
The ban put in place on 17 March meant that Malian clubs Onze Createurs and Djoliba were disqualified from the 2017 Confederation Cup.
Both Mali and Ghana booked their place in the Round of 16 at the Fifa Under-17 World Cup on Thursday.
The Malians beat New Zealand 3-1 in New Delhi to finish second in Group B behind Paraguay, who beat Turkey 3-1 in Mumbai to maintain their 100% record.
Ghana, meanwhile, knocked out India with a 4-0 victory over the hosts, also in New Delhi.
Mali - runners-up at the 2015 finals in Chile - next play on Tuesday, while Ghana are next in action on Wednesday.
The Eaglets took the lead through a fine strike from Salam Jiddou after 18 minutes, with Djemoussa Traore doubling the lead five minutes after half-time.
New Zealand pulled a goal back after 72 minutes but a nervy finish was allayed as Lassana N'Diaye scored Mali's third, and his third of the tournament.
Mali, who lost their opening game 3-2 to Paraguay before bouncing back with a 3-0 win over Turkey, will meet the team finishing second in Group F on Tuesday in Goa.
Later in New Delhi, Ghana leapt from third in Group A to finish top after knocking out hosts India with a 4-0 win.
The Black Starlets joined Colombia and the United States in finishing on six points but ended top because of a superior goal difference, with the South Americans taking second spot.
Captain Eric Ayiah scored twice, once in each half, before Richard Danso and Emmanuel Toku added goals in the 86th and 87th minutes respectively.
The two-time winners will meet one of the best third-placed teams in Mumbai next week.
Hosts Zambia got off to a flying start in the Under-20 Africa Cup of Nations when they beat Guinea 1-0 in front of a packed home crowd at the Heroes Stadium in Lusaka.