A fishing boat was captured cruising through the pieces of sea ice floating near the port in Laizhou Bay, the Bohai Sea, the East China Sea as the temperature dropped to minus degree Celsius on Wednesday. /VCG Photo

The floating sea ice was formed by the cold weather that hit eastern China over the past few days, with a maximum thickness of about five centimeters. /VCG Photo

The sea ice has so far not affected ships' movement and fishing activities near the port. /VCG Photo

The local maritime department is stepping up patrol along the seashore to monitor changes to ice conditions. /VCG Photo