A high-tech Chinese research ship docked at Sri Lanka's southern port of Hambantota on Tuesday, days after Colombo asked Beijing to defer the port call amidst India's concern over the vessel's presence in its neighbourhood.

Chinese ballistic missile and satellite tracking ship 'Yuan Wang 5' arrived in the southern port of Hambantota at 8.20 am local time. It will be docked there till August 22, officials said.