Russian defense officials say their forces have taken control of Kostiantynivka in eastern Ukraine, according to reports published by Yahoo News and Investing.com. Both outlets present the claim as coming from the Russian Ministry of Defense and describe it as part of the ongoing fighting in the eastern theater. The coverage does not provide additional, independently verified details on the battlefield situation beyond the assertion of capture. Neither report indicates whether Ukrainian forces confirm or deny the claim, nor do they include information such as the size of any forces involved, casualty figures, or immediate operational consequences following the reported takeover. With only these summaries available, the specific timeline of the alleged capture, the front-line context in which it occurs, and the current control status of the town cannot be independently assessed from the provided information. The statement is therefore reported as a claim by Russian authorities, reflecting the broader pattern of contested frontline reporting during the war.