Fishing boats were trapped in the cold current in the fishing port of Jinshitan in Dalian, Northeast China's Liaoning Province, on Friday. (Photos: VCG)

A strong cold air blew through Dalian on Thursday freezing parts of the shallow water in the Bohai Sea and the Yellow Sea.

Fishing boats were trapped in the cold current in the fishing port of Jinshitan in Dalian, Northeast China's Liaoning Province, on Friday.

Fishing boats were trapped in the cold current in the fishing port of Jinshitan in Dalian, Northeast China's Liaoning Province, on Friday.

A strong cold air blew through Dalian on Thursday freezing parts of the shallow water in the Bohai Sea and the Yellow Sea. (Compiled by Dong Feng)