Editor's Note: This is a developing story.
Russia attacked the Pechenihy reservoir dam in Kharkiv Oblast on Dec. 7, forcing a traffic closure on the dam's roadway, Pechenihy Mayor Oleksandr Husarov reported.
The Pechenihy reservoir supplies water to Kharkiv, Ukraine's second-largest city.
Husarov announced that traffic had been suspended as of 12 p.m. local time after a direct hit on the dam. His report did not provide details as to the type of attack or extent of the damage.
The Ukrainian military said it was prepared for the dam to be "critically damaged" and was ready to implement emergency response plans.
"The Ukrainian side has long been aware of the potential risks and is ready for the dam to be critically damaged. Appropriate response plans were developed in advance," Ukraine's 16th Army Corps said.
The Pechenihy dam is "a critically important facility that provides water supply, ecosystem stability, and security for dozens of settlements in Kharkiv Oblast," the unit said, adding that Russia's attack represents "a gross violation of international humanitarian law and qualifies as a war crime."
Russia has previously targeted the Pechenihy dam with missile, drone, and guided bomb attacks. In recent days, attacks near the reservior have intensified, according to the 16th Army Corps.
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