Zulu maidens dance during the memorial service for King Goodwill Zwelithini in Nongoma, South Africa, March 18, 2021. King Goodwill Zwelithini died on March 12, 2021 in the eastern city of Durban, aged 72, after weeks of treatment for a diabetes-related illness. (Photo by Phill Magakoe/Pool via Reuters)

Street animators wearing fancy costumes take a break on a bench in a park in Stavropol, Russia on March 14, 2021. (Photo by Eduard Korniyenko/Reuters)

People take a photo next to a blooming tree during cherry blossom season in Yuyuantan Park in Beijing, China on March 31, 2021. (Photo by Thomas Peter/Reuters)

A prong extending from a remote-controlled robot prototype approaches the mouth of a volunteer to extract a throat swab sample, as part of a self-funded project to assist physicians in running tests on suspected COVID-19 coronavirus patients in a bid to limit human exposure to disease-carriers, at a private hospital in Egypt's Nile delta city of Tanta, on March 20, 2021. (Photo by Khaled Desouki/AFP Photo)

Children sit near a mosque as they wait to break the fast during the holy fasting month of Ramadan in Palu, Central Sulawesi Province, Indonesia,on April 13, 2021. (Photo by Mohamad Hamzah/Antara Foto via Reuters)

An Iranian girls a bag of goldfish ahead of Nowruz, the Iranian New Year, in Tehran, Iran on March 17, 2021. (Photo by Majid Asgaripour/WANA (West Asia News Agency) via Reuters)

The granddaughter of one of the family members cries after the eviction from their home in El Raval neighbourhood, amid the coronavirus disease (COVID-19) pandemic, in Barcelona, Spain, May 12, 2021. (Photo by Nacho Doce/Reuters)

Members of the Loktev Ensemble perform during the opening of the 18th Moscow Meets Friends International Festival at the Moscow International House of Music in Moscow, Russia on May 18, 2021. (Photo by Artyom Geodakyan/TASS)