Magnus Carlsen Magnus Carlsen defeats challenger Ian Nepomniachtchi in Game 6 of the 2021 World Chess Championship in a marathon 136 move game. It is the first decisive result in a regulation World Chess Championship game in more than 5 years and is also the longest game in World Chess Championship history.
Portuguese Portuguese Minister of Internal Administration Eduardo Cabrita resigns after a series of scandals, including an incident where his official car was involved in a car accident that killed a highway worker.
Police in Bosnia and Herzegovina Police in Bosnia and Herzegovina arrest seven suspected war criminals in Bijeljina and Sokolac due to their reported massacre of 22 civilians during the Bosnian Genocide.
Islam in Kosovo A Kosovar man is arrested for terrorism due to his ties to the Islamist al-Nusra Front in Syria.
Oxford High School shooting The parents of Ethan Crumbley, James and Jennifer Crumbley, accused of terrorism and murder in the shooting deaths and injuries at Ethan's school, are charged with manslaughter for their role in the incident. They are caught after fleeing the police.
France–United Arab Emirates relations French president Emmanuel Macron meets UAE crown prince Mohammed bin Zayed at Expo 2020 in Dubai. The two men sign a major arms deal between the two nations.
COVID-19 pandemic Tunisia reports its first case of the SARS-CoV-2 Omicron variant in a Congolese man who travelled from Istanbul.
Mexico reports its first case of the SARS-CoV-2 Omicron variant in a 51-year-old man who travelled from South Africa.
Sri Lanka reports its first case of the SARS-CoV-2 Omicron variant in an unvaccinated woman who travelled from Nigeria.
Malaysia reports its first case of the SARS-CoV-2 Omicron variant in a 19-year-old student who travelled from South Africa on November 19 and is in quarantine.
Slovakia reports a record 15,278 new cases of COVID-19 in the past 24 hours, bringing the nationwide total of confirmed cases to 712,749.
Taoiseach Micheál Martin announces that due to fears of the Omicron variant, from December 7 until January 9, nightclubs will be closed and restaurants and bars will only be allowed to offer table service for groups of no more than six people. Additionally, indoor services can only operate at 50% capacity and families can only have visitors from three other households.
Islamic State insurgency in Iraq Seven Peshmerga fighters and three civilians are killed by Islamic State gunmen in a village in Makhmour, Erbil Governorate, Kurdistan Region, Iraq.
Insurgency in the Maghreb Militants attack a bus carrying civilians in Mopti Region, killing the driver, before setting it on fire and killing 31 passengers. The majority of the victims are women who were on their way to work at the local market.