Fog shrouded many areas in eastern and northeastern China on Saturday morning, causing the closure of expressways.
Foggy weather began to hit northeastern Liaoning Province on Wednesday and continued on Saturday with a visibility of 200 meters to 500 meters in some areas.
Sections of five expressways in the province were shut down early Saturday morning, the provincial expressway administration authorities said. They might be reopened at midday when the fog disperses.
The foggy weather, usually in the morning hours, would continue in the coming three days, said the meteorological observatory of the provincial capital Shenyang.
At least four major expressways in eastern Shandong Province were also closed on Saturday morning. The coastal cities of Rizhao, Qingdao and Yantai had a visibility of less than 1,000 meters.
Airports in Qingdao and the provincial capital Ji'nan remained normal operations.
The foggy weather would continue the whole day, according to the provincial meteorological observatory.