Competitors work on improving their underwater robot's performance during the 11th International Underwater Robot Competition, held in Qingdao, East China's Shandong province. The event, opened on Wednesday and launched by Chinese universities, focuses on cutting-edge artificial intelligence and robot technology. [Photo provided to chinadaily.com.cn]

Audiences watch robots perform during the 11th International Underwater Robot Competition, held in Qingdao, East China's Shandong province. [Photo provided to chinadaily.com.cn]

An underwater robot attracts the audience during the 11th International Underwater Robot Competition, held in Qingdao, East China's Shandong province. [Photo provided to chinadaily.com.cn]