Icicles form on the ground in a closed railway tunnel in Yeoncheon, north of Seoul, South Korea, 06 January 2021.
A cold spell grips South Korea, with the mercury dropping to a low of minus 16.2 degrees Celsius in the region.

Via EPA-EFE/YONHAP
Icicles form on the ground in a closed railway tunnel in Yeoncheon, north of Seoul, South Korea, 06 January 2021.
A cold spell grips South Korea, with the mercury dropping to a low of minus 16.2 degrees Celsius in the region.
Via EPA-EFE/YONHAP