Demonstrators wave their smartphones during a rally ahead of the G20 summit, urging the international community to back their demands for the government to withdraw a the extradition bill in Hong Kong, China on June 26, 2019. Thousands of people in Hong Kong joined an evening protest and marched to major foreign consulates urging leaders gathering for this week's G20 summit to back their demand to scrap a much criticized extradition bill. (Photo by Thomas Peter/Reuters)





The bodies of Salvadoran migrant Oscar Alberto Martinez Ramirez and his daughter Valeria are seen after they drowned in the Rio Bravo river while trying to reach the United States, in Matamoros, in Tamaulipas state, Mexico on June 24, 2019. (Photo by Reuters/Stringer)





A migrant woman cries for help for her sick and hungry children in a shelter in enabled by the National Institute of Migration (INM) in the facilities of the Mesoamerican Fair in Tapachula, Mexico, on Tuesday, June 25, 2019. (Photo by María de Jesús Peters/Agencia EL UNIVERSAL/EVZ/GDA via AP Images)





Boris Johnson, a leadership candidate for Britain's Conservative Party, and Britain's former Brexit Minister Dominic Raab visit a butcher's shop in Oxshott, Surrey, Britain, June 25, 2019. (Photo by Peter Nicholls/Reuters)





Royal Malaysian Customs officials display seized red-eared slider tortoises during a press conference at the customs authorities building in Sepang on June 26, 2019 after a foiled smuggling attempt by a syndicate. (Photo by Mohd Rasfan/AFP Photo)





A reveller arrives for Glastonbury Festival at Worthy farm in Somerset, Britain on June 26, 2019. (Photo by Henry Nicholls/Reuters)





People queue as they arrive for Glastonbury Festival at Worthy farm in Somerset, Britain on June 26, 2019. (Photo by Henry Nicholls/Reuters)





A reveller arrives for Glastonbury Festival at Worthy farm in Somerset, Britain on June 26, 2019. (Photo by Henry Nicholls/Reuters)





Festival goers arrive for the Glastonbury Festival at Worthy Farm, Somerset, England, Wednesday, June 26, 2019. The festival runs for five days and is one of the largest events of its kind in the world. (Photo by Grant Pollard/Invision/AP Photo)





Festival-goers arrive on the first day of the Glastonbury Festival at Worthy Farm in Somerset, Britain 26 June 2019. Glastonbury Festival of Contemporary Performing Arts is a five-day festival of contemporary performing arts that takes place in Pilton, Somerset, west England, from 26 to 30 June 2019. (Photo by Neil Hall/EPA/EFE)





People arrive on the first day of the Glastonbury Festival at Worthy Farm in Somerset, Britain on June 26, 2019. (Photo by Aaron Chown/PA Images via Getty Images)





Festival goers on the first day of the Glastonbury Festival at Worthy Farm in Somerset, Britain on June 26, 2019. (Photo by Yui Mok/PA Images via Getty Images)





A participant poses for a picture during the International military-technical forum ARMY-2019 at Patriot Congress and Exhibition Centre in Moscow Region, Russia on June 25, 2019. (Photo by Maxim Shemetov/Reuters)





Tourists walk on swimsuits in Palma de Mallorca, on June 26, 2019 at the start of a heatwave tipped to break records across Europe. Experts say such heatwaves early in the summer are likely to be more frequent as the planet heats up – a phenomenon that scientists have shown to be driven by human use of fossil fuels. (Photo by Jaime Reina/AFP Photo)





A man rides his bicycle under the water jet of a sprinkler system in Berlin, Germany, 25 June 2019. According to forecast, the temperatures should rise to almost 40 degrees Celsius in the coming days. (Photo by Jens Schlueter/EPA/EFE/Rex Features/Shutterstock)





A girl enjoys a cool breeze at a fountain in Berlin, Germany, June 26, 2019. Europe started to sizzle on June 25, 2019 at the start of a heatwave that could break records. Meteorologists blamed a blast of torrid air from the Sahara for the unusually early summer heatwave, which could send thermometers up to 40 degrees Celsius (104 Fahrenheit) in some places on June 27 and 28, 2019. (Photo by Hannibal Hanschke/Reuters)





Cio-Cio-San in shibari ropes during a dress rehearsal of Opera Australia's “Madama Butterfly” at the Sydney Opera House in Sydney, New South Wales, Australia, 25 June 2019 (issued 26 June 2019). Opera Australia's 2019 digital season will open with choreographer Graeme Murphy's production of Giacomo Puccini's opera “Madama Butterfly” at the Sydney Opera House from 28 June to 10 August. (Photo by Steven Saphore/EPA/EFE)