Officers of the coast guard promote knowledge on crime fighting at a fishing port on May 4, 2020. Chinese coast guard authority has dismantled more than 10 major criminal gangs engaged in illegal sea-related activities in the past three years. China's coast guards at all levels have launched campaigns and investigated more than 190 tip-offs, arresting more than 140 suspects, said the authority. (Photo by Zhai Shaohua/Xinhua)
