By Pavel Polityuk and Forrest Crellin (Reuters) -Ukraine said on Friday it had recorded increased radiation levels from the defunct Chernobyl nuclear power plant, a day after the site was captured by Russian forces, due to military activity causing radioactive dust to rise into the air. The former power plant was captured by Russian forces on Thursday after Russia launched a full-scale invasion of Ukraine, an adviser to the Ukrainian presidential office said. Experts at Ukraine’s state nuclear agency did not provide exact radiation levels but said the change was due to the movement of heavy mi…