Warship open day event held in Qingdao

Crew members and visitors take a selfie on Russian Navy tug ship Nikolai Chiker during a warship open day event in Qingdao, east China's Shandong Province, April 24, 2019. A warship open day event was held on Wednesday in Qingdao, as part the multinational naval events marking the 70th founding anniversary of PLA Navy. (Xinhua/Yu Lan)