Ukraine says Russia blows up major dam, warns of widespread flooding

KYIV, Ukraine—ukraine on Tuesday accused Russian forces of blowing up a major dam and hydroelectric power station in a part of southern Ukraine that Russia controls, sending water gushing from the breached facility and risking massive flooding. Ukrainian authorities ordered hundreds of thousands of residents downriver to evacuate.

Russian officials countered that the Kakhovka dam was damaged by Ukrainian military strikes in the contested area.

Ukrainian authorities have previously warned that the failure of the Kakhovka dam could unleash 18 million cubic meters (4.8 billion gallons) of water and flood Kherson and dozens of other areas downriver where hundreds of thousands of people live, as well as threatening a nearby Russian-occupied nuclear power plant.

Ukraine’s nuclear operator Energoatom said in a Telegram statement that the blowing up of the dam “could have negative consequences for the Zaporizhzhia nuclear power plant,” but at the moment situation is “controllable.”

The U.N.’S International Atomic Energy Agency wrote on Twitter that its experts were closely monitoring the situation at the Zaporizhzhia Nuclear Power Plant upstream, and there was “no immediate nuclear safety risk” at the facility.

According to the Ukraine War Environmental Consequences Working Group, a total collapse in the dam would wash away much of the left bank and a severe drop in the reservoir has the potential to deprive the nuclear plant of crucial cooling, as well as dry up the water supply in northern Crimea.

President Volodymyr Zelenskyy called an emergency meeting to deal with the crisis, Ukrainian officials said.

The Ukrainian Interior Ministry wrote on Telegram that the Kakhovka dam had been blown up, and called for residents of 10 villages on the river’s right bank and parts of the city of Kherson downriver to gather essential documents and pets, turn off appliances, and leave, while cautioning against possible disinformation.

The Russian-installed mayor of Nova Kakhovka Vladimir Leontyev said Tuesday that numerous strikes on the Kakhovka hydroelectric plant destroyed its valves, and “water from the Kakhovka reservoir began to uncontrollably flow downstream.”

Leontyev said the strikes were “a very serious terrorist act”said Moscow-appointed authorities are “preparing for the worst consequences”—though stopping short of urging an evacuation of city residents.