On September 1, 2004, Chechen militants stormed an elementary school in the town of Beslan in the Russian republic of North Ossetia. They took 1,100 teachers, children, and their relatives hostage, demanding the withdrawal of federal forces from Chechnya as a condition for their release. On September 3, 2004, Russian security forces stormed the building, resulting in a battle in which more than 330 hostages died, including 186 children. Here: A man assists two young hostages who managed to escape from the school building after special forces entered the school in Beslan, North Ossetia, Friday 03 September 2004. (Photo by Yuri Kochetkov/EPA)

A Cambodian man rides his motor-cart loaded with goods along a street on the outskirts Phnom Penh, Cambodia on October 30, 2017. (Photo by Tang Chhin Sothy/AFP Photo)

A girl practices martial arts during a training at a school in Syrian opposition-held village of al-Jeineh, Syria on April 11, 2021. (Photo by Khalil Ashawi/Reuters)

Party-loving Brits headed out to enjoy the first weekend of indoor drinking in months; many – like these lasses in Liverpool on May 22, 2021 – were keen to make up for lost time. (Photo by London News Pictures)

Agricultural workers are rice-transplanting at the Namsa Co-op Farm of Rangnang District in Pyongyang, DPRK, on Tuesday, May 25, 2021. (Photo by Jon Chol Jin/AP Photo)

Hot-air balloons float over the Oka River during the Russian Sky International Balloon Festival in Ryazan Region, Russia on July 26, 2021. (Photo by Alexander Ryumin/TASS)

Staff members work on sorting and assembling the skeleton of a fossilized Triceratops dinosaur, in Paris, France, 31 August 2021. The skeleton of a Triceratops, an over 66 million years old dinosaur, knicknamed “Big John”, will be auctioned at the Drouot Auction House on 21 October 2021 and is estimated to fetch a total of 1.5 million euros. (Photo by Christophe Petit Tesson/EPA/EFE)

An indigenous man of Mahmeri tribe wearing a costume of Puteri Gunung Ledang character receives a dose of the vaccine against Covid-19 in Banting, near Kuala Lumpur, Malaysia,15 August 2021. Malaysia recorded another 20,670 new Covid-19 cases on 14 August, bringing the cumulative total to 1,384,353 cases. (Photo by Ahmad Yusni/EPA/EFE)