Three Ukrainian emergency services workers were killed on December 24 when a mine exploded while they were demining parts of the Kherson region, authorities said on December 25. Russia controls most but not all of the Kherson region. By mid-November, Ukrainian forces retook Kherson city -- the region's administrative center -- and a number of settlements in the area. Explosive experts have worked there since, after President Volodymyr Zelenskiy said that Russian forces had heavily mined buildings and objects. To read the original story by Reuters, click here.