International Underwater Robot Competition makes a splash in E China
The 2017 International Underwater Robot Competition was held on Saturday in the city of Hefei in east China's Anhui Province.
A robot fish water polo game was the center of attention with participants gathering up to watch a pair of bionic fish compete with another pair to score the most balls in a net in 10 minutes. 
Outside the venue, a competition was also held at an artificial lake to test the application of underwater robots. Participants were asked to operate their robots to pick up floating garbage from the lake.