MADRID, May 3, 2020 (Xinhua) -- Officials and firefighters observe a moment of silence for COVID-19 victims at the Puerta del Sol square in Madrid, Spain on May 2, 2020.

LHASA, May 3, 2020 (Xinhua) -- Xue Qiangqiang is seen at the base camp of Mount Qomolangma in southwest Chinas Tibet Autonomous Region, May 2, 2020. It is the first time for Xue Qiangqiang, 37, to ascend Mount Qomolangma, the worlds highest peak. He is a member of a Chinese team to remeasure the mountains height in May. TO GO WITH Feature: Chinese surveyors prepares for remeasuring Mt. Qomolangma

LHASA, May 3, 2020 (Xinhua) -- Xue Qiangqiang and his teammates depart from the base camp of Mount Qomolangma in southwest Chinas Tibet Autonomous Region, in this aerial photo taken on May 2, 2020. It is the first time for Xue Qiangqiang, 37, to ascend Mount Qomolangma, the worlds highest peak. He is a member of a Chinese team to remeasure the mountains height in May.TO GO WITH Feature: Chinese surveyors prepares for remeasuring

MEHTARLAM, May 3, 2020 (Xinhua) -- Afghan security force members inspect the site of a bomb attack in Mehtarlam city, capital of Laghman province, Afghanistan, May 2, 2020. Three civilians were killed and four others wounded in a bomb attack in Mehtarlam city on Saturday, a provincial government spokesman confirmed.