Militant Islamist fighters take part in a military parade along the streets of Syria's northern Raqqa province June 30, 2014. The fighters held the parade to celebrate their declaration of an Islamic “caliphate” after the group captured territory in neighbouring Iraq, a monitoring service said. The Islamic State, an al Qaeda offshoot previously known as Islamic State in Iraq and the Levant (ISIL), posted pictures online on Sunday of people waving black flags from cars and holding guns in the air, the SITE monitoring service said. (Photo by Reuters/Stringer)

An Indian resident assists a dog as he wades through floodwaters in Ahmedabad on July 30, 2014. Rains lashed Ahmedabad and many regions of India's western Gujarat state, wth the Indian Metrological Department warning of heavy rains for the next 48 hours. (Photo by Sam Panthaky/AFP Photo)

A protester holding a torch runs past police (not pictured) trying to stop the protesters from marching in a rally organised by a 30-party alliance led by a hardline faction of former Maoist rebels, who are protesting against the draft of the new constitution, in Kathmandu August 15, 2015. The group says that the draft is not inclusive and does not protect the rights of the marginalised and underprivileged groups in the country. (Photo by Navesh Chitrakar/Reuters)

Russia's President Vladimir Putin and Saudi Arabia's Crown Prince Mohammed bin Salman are seen during the G20 summit in Buenos Aires, Argentina November 30, 2018. G20 powers open two days of summit talks on Friday after a stormy buildup dominated by tensions with Russia and US President Donald Trump's combative stance on trade and climate fears. (Photo by Marcos Brindicci/Reuters)

In this Friday, November 30, 2018 handout photo released by Raindrop Media, Bollywood actress Priyanka Chopra and Nick Jonas celebrate during a mehendi ceremony, a day before their wedding, at Umaid Bhawan in Jodhpur, India. (Photo by Raindrop Media via AP Photo)

A Chinese tourist uses the scarf of a friend as she is helped while she and others struggle to climb in the wind on an icy section of the Great Wall at Badaling, on a cold day after a snowfall on November 30, 2019 in Beijing, China. (Photo by Kevin Frayer/Getty Images)

American rapper Megan Thee Stallion performs onstage during the EA Sports Bowl at Bud Light Super Bowl Music Fest on January 30, 2020 in Miami, Florida. (Photo by Frazer Harrison/Getty Images for EA Sports Bowl at Bud Light Super Bowl Music Fest)

A tourist pauses for photos with her mask on at Sensoji Temple Thursday, January 30, 2020, in Tokyo. The country began evacuating Japanese citizens on Wednesday from the Chinese city Wuhan hardest-hit by the virus. (Photo by Jae C. Hong/AP Photo)