Swedish activist Greta Thunberg was arrested by UK police under the Terrorism Act at the Prisoners for Palestine lock-on protest outside the offices of Aspen Insurance in London, which insures the Israeli weapons firm Elbit Systems. | Al Jazeera English

Leaders from Mali, Niger and Burkina Faso are hoping to find a way to repel advancing fighters linked to al-Qaeda. Al Jazeera’s Laura Khan explains what’s at stake at an Alliance of Sahel States summit in Bamako. | Al Jazeera English

Videos show deserts and mountains blanketed with snow in Saudi Arabia’s Hail and Tabuk region, as a cold weather snap hits several cities. | Al Jazeera English

A Russian general was killed in Moscow on Monday when an explosive device detonated underneath his car. Authorities say they are investigating whether Ukrainian special services were involved. | Al Jazeera English

Police in the UK arrested protesters during demonstrations in support of Palestine Action, a pro-Palestinian network banned as a 'terror group' by the British government. The High Court is deliberating whether the ban is legal, while six detained activists on hunger strike are at risk of death. | Al Jazeera English

Videos showed the moment heavy rainfall sparked flash flooding in Margate, South Africa, sweeping cars away and causing widespread disruption as it submerged the town's streets. | Al Jazeera English