A woman reacts as she lays flowers outside the Perm State University following a campus shooting in Perm, about 1,100 kilometers (700 miles) east of Moscow, Russia, Tuesday, September 21, 2021. A student opened fire at the university, leaving a number of people dead and injured, before being shot in a crossfire with police and detained. Beyond saying that he was a student, authorities offered no further information on his identity or a possible motive. (Photo by Dmitri Lovetsky/AP Photo)

Sudanese protesters rally outside the army complex in Sudan's capital Khartoum on April 18, 2019. Huge crowds of protesters thronged the Sudanese capital Khartoum today, a week after the army's ouster of president Omar al-Bashir, determined to complete their revolution seeking civilian rule. (Photo by Ozan Kose/AFP Photo)

Players in action during the Swamp Soccer Championships 2019 in Hyrynsalmi, Finland, 19 July 2019. The World Championship in swamp football is played annually on Vuorisuo bog in Hyrynsalmi. (Photo by Tomi Hanninen/EPA/EFE)

A Spanish national police officer uses his club to hit a protester during a demonstration called the Catalan pro-independence left youth group “Arran” on October 19, 2019 in Barcelona, a day after nearly 200 people were hurt in another night of violent clashes in Catalonia. The deterioration came on the fifth consecutive day of protests in the Catalan capital and elsewhere over a Spanish court's jailing of nine separatist leaders on sedition charges over a failed independence bid two years ago. (Photo by Josep Lago/AFP Photo)

Cambridge students the morning after the Trinity and Jesus college May Balls in Cambridge, United Kingdom on June 19, 2018. Students at Cambridge University celebrate the end of the academic year with the May Balls. (Photo by South West News Service)

A helicopter flies close to a volcanic eruption which has begun in Fagradalsfjall near the capital Reykjavik on March 20, 2021 in Fagradalsfjall, Iceland. On Friday the Icelandic meteorological office announced a volcano, referring to a mountain located south-west of the Capital Reykjavik has erupted after thousands of small earthquakes in the area over the recent weeks. A no-fly zone has been established in the area. (Photo by Vilhelm Gunnarsson/Getty Images)

A Capetonian watches the sun rise from the top of Signal Hill as smoke engulfs the city of Cape Town, South Africa, Tuesday April 20, 2021. A massive fire spreading on the slopes of the city's famed Table Mountain, at right, is kept under control as firemen and helicopters take advantage of the low winds to contain the blaze. (Photo by Jerome Delay/AP Photo)

British singer and songwriter Ella McMahon, better known by her stage name Ella Eyre performs on stage at SWG3 on October 20, 2021 in Glasgow, Scotland. (Photo by Roberto Ricciuti/Redferns)