Heavy fog enveloped many parts in northern and eastern China on Friday and Saturday, causing disruptions to local traffic and forcing the closure of several highway sections. Around 08:00 on Saturday, Guangping County in north China's Hebei Province experienced dense fog, which reduced visibility to less than 20 meters. In response, local traffic police have activated emergency plans, increasing traffic control at critical intersections and road sections and intensifying patrols to ensure safe and smooth traffic. As the weather improved, the fog has gradually dissipated, and the orange fog warning issued by the local meteorological observatory has been lifted. Dezhou City in east China's Shandong Province was also hit by dense fog beginning at midnight on Friday. In response, temporary traffic control measures were put in place at highway entrances, with station staff ready to assist the stranded vehicles. "We have arranged for field staff to be on duty around the clock and prepared ample emergency supplies such as hot water, bread, and first-aid kits, ready to provide supportive services to stranded drivers and passengers," said Wu Shucai, deputy manager of a toll station. The fog thickened at midnight, reducing visibility to under 100 meters in various parts of Dezhou, which greatly affected travel. "Our traffic management department is implementing traffic control, guiding vehicles, and providing safety reminders at key intersections within the jurisdiction," said Liu Bin, a local traffic policeman. Around 07:00 on Saturday, heavy fog hit Heze City in the province, prompting the issuance of a yellow warning. To mitigate the impact of the fog on traffic, local police were stationed at major intersections and busy road sections to ensure a safe, orderly, and smooth traffic flow. As of 11:00, the provincial meteorological observatory lifted the yellow fog warning, and the previously closed road sections resumed normal traffic. Dense fog blanketed Sihong County of east China's Jiangsu Province early Saturday morning, with visibility dropping to under 10 meters in some areas. In response, some highways in the city have implemented the strictest level of traffic control, prohibiting all vehicles from passing. Huai'an in the province also experienced dense fog, with visibility of less than 500 meters, leading to the closure of all five highways in the city starting at 06:00. As the sun rose, the fog gradually cleared, and all previously closed highway sections reopened to traffic. China has a four-tier weather warning system, with red representing the most severe warning, followed by orange, yellow, and blue. The video shows: Guangping County, Handan City, Hebei Province, north China - Nov 1, 2025 (CCTV - No access Chinese mainland) 1. Various of traffic in dense fog 2. Various of traffic policeman guiding traffic 3. Various of traffic in fog Dezhou City, Shandong Province, east China - Oct 31-Nov 1, 2025 (CCTV - No access Chinese mainland) 4. Various of toll station at highway entrance 5. SOUNDBITE (Chinese) Wu Shucai, deputy manager, toll station (ending with shot 6): "We have arranged for field staff to be on duty around the clock and prepared ample emergency supplies such as hot water, bread and first-aid kits, ready to provide supportive services to stranded drivers and passengers." 6. Various of station staff patrolling, providing hot water to driver 7. Various of street lamp light in dense fog 8. Various of cityscape, traffic in dense fog 9. SOUNDBITE (Chinese) Liu Bin, traffic policeman (ending with shot 10): "Our traffic management department is implementing traffic control, guiding vehicles, and providing safety reminders at key intersections within the jurisdiction." 10. Various of traffic policeman guiding traffic Heze City, Shandong Province, east China - Nov 1, 2025 (CCTV - No access Chinese mainland) 11. Various of cityscape, traffic in fog Sihong County, Suqian City, Jiangsu Province, east China - Nov 1, 2025 (CCTV - No access Chinese mainland) 12. Various of cityscape, traffic in dense fog Huai'an City, Jiangsu Province, east China - Nov 1, 2025 (CCTV - No access Chinese mainland) 13. Aerial shots of cityscape, traffic in dense fog [Restrictions: No access Chinese mainland]