A police officer has weapons blessed by a Hindu priest during the Vishwakarma Puja festival in the outskirts of Agartala, India, September 17, 2016. (Photo by Jayanta Dey/Reuters)

North Korean soldiers keep watch at the bank of the Yalu River, near the North Korean town of Sinuiju, opposite Dandong in China's Liaoning province, September 10, 2016. (Photo by Thomas Peter/Reuters)

Kenichi Ito runs on his arms and legs on a race course on his way to setting the Guinness World Record fastest time for the 100-meter dash on all fours at Komazawa Olympic Park Stadium in Tokyo Thursday, November 14, 2013. The 30-year-old Japanese finished in 16.87 seconds Thursday, shaving more than half a second off his 2012 run of 17.47. (Photo by Shizuo Kambayashi/AP Photo)

In this photograph taken on January 19, 2012, Indonesian schoolchildren hold on to iron cables as they cross a nearly-collapsed suspension bridge at Sanghiang Tanjung village in Indonesia's Banten province to reach their school. (Photo by Kris Aria/AFP Photo)

A Gnawa traditional group performs in the city of Essaouira on December 14, 2019, to celebrate the decision of adding the Gnawa culture to UNESCO's list of Intangible Cultural Heritage of Humanity. Gnawa culture, a centuries-old Moroccan practice rooted in music, African rituals and Sufi traditions, was added to UNESCO's list of Intangible Cultural Heritage of Humanity earlier in the week. Gnawa refers to a “set of musical productions, fraternal practices and therapeutic rituals where the secular mixes with the sacred”, according to the nomination submitted by Morocco. Often dressed in colourful outfits, Gnawa musicians play the guenbri, a type of lute with three strings, accompanied by steel castanets called krakebs. (Photo by Fadel Senna/AFP Photo)

A great tit eats food from the top of a photographer's hat as the press wait for politicians on Downing Street on December 16, 2019 in London, England. The UK's Prime Minister is set to hold a mini Cabinet reshuffle to replace outgoing ministers following last week's general election victory. (Photo by Leon Neal/Getty Images)

In this photo taken on Monday, August 5, 2019, a family watches explosions at a military ammunition depot near the city of Achinsk in eastern Siberia's Krasnoyarsk region, in Achinsk, Russia. Russian officials say powerful explosions at a military depot in Siberia left 12 people injured and one missing and forced over 16,500 people to leave their homes. (Photo by Dmitry Dub/AP Photo)

In this Wednesday, April 8, 2020, photo, youths remove their mask to record a dance routine on the streets of Wuhan in central China's Hubei province. Released from their apartments after a 2 1/2-month quarantine, residents of the city where the coronavirus pandemic began are cautiously returning to shopping and strolling in the street but say they still go out little and keep children home while they wait for schools to reopen. (Photo by Ng Han Guan/AP Photo)