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![Commuters brace against the cold at Gwanghwamun intersection in central Seoul on Oct. 21, as early winter chill grips the city with morning temperatures dropping to 4.8 degrees Celsius. [NEWS1]](https://image.koreajoongangdaily.com/12302097.jpg?imageId=12302097&width=240&height=184&format=webp&format=jpg)
![The real-time electricity supply and the estimated total supply for Tuesday are displayed in megawatts on a screen at the headquarters of Korea Electric Power Corporation (Kepco) Seoul in Jongno District, central Seoul, on Tuesday. Demand and supply for electricity used for heating has risen as the cold temperatures persist. [YONHAP]](https://image.koreajoongangdaily.com/10223337.jpg?imageId=10223337&width=240&height=184&format=webp&format=jpg)
![A notice that the Gimpo Goldline trains being temporarily suspended hangs on the entrance to Gurae station in Gimpo, Gyeonggi, on Monday. [YONHAP]](https://image.koreajoongangdaily.com/11193912.jpg?imageId=11193912&width=240&height=184&format=webp&format=jpg)
![More people are buying heating devices as temperatures drop. Lotte Himart, the household electronics chain, announced that the sales of heating devices between Oct. 4 to 10 doubled from the previous week. [YONHAP]](https://image.koreajoongangdaily.com/11862989.jpg?imageId=11862989&width=240&height=184&format=webp&format=jpg)