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Ukraine’s armed forces declined to share how many Ukrainians accused of collaborating with Russia have been identified or apprehended. The Associated Press reported that
about 400 people in the Kharkiv region suspected of collaborating have been detained and could face prosecution under new laws that make any action aiding Russian forces that results in deaths of Ukrainians punishable by life in prison.
Dmytro Ivanov, deputy head of the Chernihiv regional civil-military administration, said security services are investigating cases of alleged collaborators marking Ukrainian positions with phosphorus, which can be identified from the sky and has helped Russians target artillery fire on Ukrainian positions. He said others led Russians to food and supply storehouses. In some cases, he said, collaborators had accepted food or cash from Russians in exchange for information.