Coal miners and rescue workers gather at the scene following an explosion in a coal mine in Azadshahr in northern Iran that left at least 50 miners trapped on May 3, 2017. The mine in Golestan province collapsed when trapped methane gas exploded as workers tried to jump-start a locomotive engine, according to reports. Photo credit: Getty Images
A Yemeni father tends to his malnourished child as she receives treatment at a hospital in the city of Al Hudaydah, Yemen on May 2, 2017. Photo credit: Getty Images
China's Foreign Minister Wang Yi meets Sheikh Abdullah bin Zayed bin Sultan Al Nahyan, the Minister of Foreign Affairs and International Cooperation of the United Arab Emirates in Beijing on May 2, 2017. Photo credit: Getty Images
School children are taught how to protect themselves from airstrikes or chemical attacks during a war safety awareness class in the rebel-held area of Harasta in Damascus on May 2, 2017. The class is a part of a campaign conducted by the Syrian civil defence known as The White Helmet. Photo credit: Getty Images
People walk on a hill covered with nemophila flowers in full bloom at Hitachi Seaside Park in Hitachinaka, Ibaraki Prefecture in Japan on May 3, 2017. Park visitors can witness an estimated 4.5 million nemophila in bloom until the end of May 2017. Photo credit: Getty Images