Strategically vital Nova Khakovka dam blown up near border with Ukraine and Russia-controlled Crimea

The dam’s breach could have a huge impact on the wider war effort in Ukraine.

June 6, 2023, 5:05 PM

LONDON -- A section of a strategically vital Ukrainian dam and hydroelectric powerplant under Russian control has been blown up. Ukraine and Russia are blaming each other for the breach.

The Nova Kakhovka dam, which was built in 1956 and traverses the enormous Dnipro River in southern Ukraine, suffered an explosion overnight at approximately 2 a.m. local time as a deluge of water could be seen bursting through the dam that had previously held back more than 18 cubic kilometers of water -- comparable to the size of the Great Salt Lake in Utah.

The dam's breach could have a massive impact on the wider war effort between Russia and Ukraine.

PHOTO: Ukraine Dam Explosion
Ukraine Dam Explosion
ABC News

A defiant President Volodymyr Zelenskyy held an emergency meeting of his National Security Council on Tuesday and blamed "Russian terrorists" for the dam explosion. In an address to the nation later in the day, Zelenskyy called the attack on the dam "an environmental bomb of mass destruction."

"The whole world will know about this Russian war crime, the crime of ecocide," he said in his speech. "For the sake of their own security, the world should now show that Russia will not get away with such terror."

Zelenskyy said he is awaiting a meeting with the UN Security Council about the situation.

The UN said it is rushing support to Ukraine, which includes drinking water, water purification tablets and other "critical" assistance.

"The United Nations has no access to independent information on the circumstances that led to the destruction in the Kakhovka hydroelectric power plant dam," the UN Secretary-General António Guterres said in a statement Tuesday. "But one thing is clear: this is another devastating consequence of the Russian invasion of Ukraine."

PHOTO: A resident holds her pets, Tsatsa and Chunya, as she stands inside her house that was flooded after the Kakhovka dam blew up overnight, in Kherson, Ukraine, June 6, 2023.
A resident holds her pets, Tsatsa and Chunya, as she stands inside her house that was flooded after the Kakhovka dam blew up overnight, in Kherson, Ukraine, June 6, 2023.
Evgeniy Maloletka/AP

Meanwhile, an estimated 16,000 residents who live downriver were told to leave immediately after the explosion as the governor of Kherson ordered an immediate evacuation of citizens. Officials told residents they had five hours to get out, instructing them only to take essential documents and directing them to buses that would take them to higher ground.

Zelenskyy said crews are working hard to save as many people from the nearby areas and provide drinking water to those who received it from the Kakhovka reservoir.

"It is very important now to take care of each other and help as much as possible," he said.

PHOTO: A local resident makes her way through a flooded road after the walls of the Kakhovka dam collapsed overnight, in Kherson, Ukraine, June 6, 2023.
A local resident makes her way through a flooded road after the walls of the Kakhovka dam collapsed overnight, in Kherson, Ukraine, June 6, 2023. Ukraine accused Russian forces of blowing up a major dam and hydroelectric power station in a part of southern Ukraine that Russia controls, risking environmental disaster.
Evgeniy Maloletka/AP

The explosion at the Nova Kakhovka hydroelectric power plant, which seems to be beyond repair, could also affect the Zaporizhzhia Nuclear Power Plant which is located approximately 100 miles upstream.

PHOTO: Water flows through a breach on the Nova Khakovka dam in south Ukraine, June 5, 2023.
Water flows through a breach on the Nova Khakovka dam in south Ukraine, June 5, 2023. Ukrainian President Volodymyr Zelenskyy will urgently convene his Security Council on June 6, 2023 after an explosion at the Kakhovka hydroelectric dam in the south of the country.
Maxar Technologies via AFP-Getty Images

The reservoir provides cooling water to the plant and the International Atomic Energy Agency, said it is "closely monitoring" the situation surrounding the dam.

The IAEA said later in the day that the water level at the plant has been falling throughout the day, but the facility has back-up options available and there is no short-term risk to nuclear safety and security.

PHOTO: Ukraine's President Volodymyr Zelenskyy holds an emergency meeting with top state and regional officials concerning the Kakhovka dam destruction, in Kyiv, Ukraine, June 6, 2023.
Ukraine's President Volodymyr Zelenskyy holds an emergency meeting with top state and regional officials concerning the Kakhovka dam destruction, in Kyiv, Ukraine, June 6, 2023.
Ukrainian Presidential Press Service via Reuters

"If and when the level goes below 12.7 metres, the ZNPP will no longer be able to pump water from the reservoir to replenish the reserves at the site. As the full extent of the damage to the dam is not yet known and the water loss rate is fluctuating, it is not possible to predict exactly when this might happen," the IAEA said in a statement. "If the current rate were to continue, however, this level could be reached in the next couple of days."

IAEA Director General Rafael Grossi noted that Ukraine had carried out stress tests following the Fukushima nuclear accident in 2011, including the scenario of the Nova Kakhovka dam failing.

“There is a preparedness for events like this at Ukraine’s Zaporizhzhya Nuclear Power Plant, which will help staff to handle this new challenging situation. But, clearly, this is making an already very difficult and unpredictable nuclear safety and security situation even more so," he said in a statement.

Zelenksyy said he spoke with Grossi about the situation at the plant.

"I called on the IAEA Director to directly and unequivocally condemn today's Russian act of terrorism and to maximize our efforts to liberate the ZNPP," Zelenskyy said.

PHOTO: A partially flooded area of Kherson, June 6, 2023, following damages sustained at Kakhovka hydroelectric dam
A partially flooded area of Kherson, June 6, 2023, following damages sustained at Kakhovka hydroelectric dam. The partial destruction of a major Russian-held dam in southern Ukraine unleashed a torrent of water that sent people fleeing on the war's front line. Moscow and Kyiv traded blame for ripping a gaping hole in the Kakhovka dam.
Oleg Tuchynsky/AFP via Getty Images

Grossi said he will lead a IAEA rotation next week to assess the situation.

PHOTO: A satellite image shows Nova Khakovka Dam in Kherson region, Ukraine June 5, 2023.
A satellite image shows Nova Khakovka Dam in Kherson region, Ukraine June 5, 2023.
Maxarâ technologies/via Reuters

Editor's note: The headline has been adjusted to better indicate the border location.

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