Aerial photo taken on Jan. 13, 2021 shows the rescue site of a gold mine after an explosion accident in Qixia City, east China's Shandong Province. More than 300 rescuers have joined the search for 22 workers who were trapped underground after an explosion ripped through a gold mine under construction in east China's Shandong Province, local authorities said Tuesday. (Xinhua/Wang Kai)
