CNN —US and western officials see signs that Ukraine’s long-awaited counteroffensive against Russia is beginning and have noted a “substantial increase in fighting” in the east of the country over the last 48 hours as Ukrainian troops probe for weaknesses in Russian defensive lines, a senior NATO official said on Tuesday. The destruction of a sprawling dam in Ukraine’s Russian-occupied Kherson region, which triggered a wave of evacuations on Tuesday as floods of water spilled from the Nova Kakhovka hydro-electric plant, could complicate some of Ukraine’s plans, officials told CNN. The dam’s destruction could now make it more difficult for Ukrainian troops to cross the Dnipro River and attack Russian positions there, said two western officials. Ukrainian forces are also conducting operations south of Donetsk city in eastern Ukraine, which appears to be a new effort, the western official said. The counteroffensive is expected to be carried out on multiple fronts, a senior US military official said.

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Persons: “, ’, Hanna Maliar, Volodymyr Zelensky, ” Zelensky, Mark Milley Organizations: CNN, NATO, Nova, Wall, Joint Chiefs, Staff Locations: Russia, Kherson, Dnipro, Ukrainian, ”, European, Washington, Zaporizhzhia, Donetsk, Ukraine, Europe