What Is the Kakhovka Dam in Ukraine - and What Happened? 

This screen grab from a video posted on Ukraine's President Volodymyr Zelenskiy’s Twitter account on June 6, 2023 shows an aerial view of the dam of the Kakhovka Hydroelectric Power Station after it was partially destroyed.(AFP Photo /Twitter / Account of Ukraine's President Volodymyr Zelenskiy @ZelneskyyUa)
This screen grab from a video posted on Ukraine's President Volodymyr Zelenskiy’s Twitter account on June 6, 2023 shows an aerial view of the dam of the Kakhovka Hydroelectric Power Station after it was partially destroyed.(AFP Photo /Twitter / Account of Ukraine's President Volodymyr Zelenskiy @ZelneskyyUa)
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What Is the Kakhovka Dam in Ukraine - and What Happened? 

This screen grab from a video posted on Ukraine's President Volodymyr Zelenskiy’s Twitter account on June 6, 2023 shows an aerial view of the dam of the Kakhovka Hydroelectric Power Station after it was partially destroyed.(AFP Photo /Twitter / Account of Ukraine's President Volodymyr Zelenskiy @ZelneskyyUa)
This screen grab from a video posted on Ukraine's President Volodymyr Zelenskiy’s Twitter account on June 6, 2023 shows an aerial view of the dam of the Kakhovka Hydroelectric Power Station after it was partially destroyed.(AFP Photo /Twitter / Account of Ukraine's President Volodymyr Zelenskiy @ZelneskyyUa)

A huge Soviet-era dam on the Dnipro River that separates Russian and Ukrainian forces in southern Ukraine was breached on Tuesday, unleashing floodwaters across the war zone.

Ukraine said Russia had destroyed it, while Russia said Ukraine sabotaged it to cut off water supplies to Crimea and distract attention from a "faltering" counter-offensive.

What is the dam, what happened - and what do we not know?

The Kakhovka dam

The dam, part of the Kakhovka hydroelectric power plant, is 30 meters (98 feet) tall and 3.2 km (2 miles) long. Construction was started under Soviet leader Josef Stalin and finished under Nikita Khrushchev.

The dam bridged the Dnipro river, which forms the front line between Russian and Ukrainian forces in the south of Ukraine.

Creation of the 2,155 sq km (832 sq mile) Kakhovka reservoir in Soviet times forced around 37,000 people to be moved from their homes.

The reservoir holds 18 cubic kilometers (4.3 cubic miles) of water - a volume roughly equal to the Great Salt Lake in the US state of Utah.

The reservoir also supplies water to the Crimean peninsula, which Russia annexed in 2014, and to the Zaporizhzhia nuclear plant, which is also under Russian control.

What happened?

Ukraine, which commented first, said Russia was responsible.

Ukrainian President Volodymyr Zelenskiy accused Russian forces of blowing up the Kakhovka Hydroelectric Power Station from inside the facility, and said Russia must be held to account for a "terrorist attack".

"At 02:50, Russian terrorists carried out an internal detonation of the structures of the Kakhovskaya HPP. About 80 settlements are in the zone of flooding," Zelenskiy said after an emergency meeting of senior officials.

A Ukrainian military spokesperson said Russia's aim was to prevent Ukrainian troops crossing the Dnipro River to attack Russian occupying forces.

Russia said Ukraine sabotaged the dam to cut off water supplies to Crimea and to distract attention from its faltering counteroffensive.

"We can state unequivocally that we are talking about deliberate sabotage by the Ukrainian side," Kremlin Spokesman Peskov told reporters.

Earlier some Russian-installed officials said no attack had taken place. Vladimir Rogov, a Russian installed official in Zaporizhzhia, said the dam collapsed due to earlier damage and the pressure of the water. Russia's state news agency TASS carried a report to the same effect.

What is the human impact?

With water levels surging higher, many thousands of people are likely to be affected. Evacuations of civilians began on both sides of the front line.

Some 22,000 people living across 14 settlements in Ukraine's southern Kherson region are at risk of flooding, Russian installed officials said. They told people to be ready to evacuate.

Ukrainian Prime Minister Denys Shmyhal said that up to 80 settlements were at risk of flooding.

Crimea

The destruction of the dam risks lowering the water level of the Soviet-era North Crimean Canal, which has traditionally supplied Crimea with 85% of its water needs.

Most of that water is used for agriculture, some for the Black Sea peninsula's industries, and around one fifth for drinking water and other public needs.

Nuclear plant

The Zaporizhzhia Nuclear Power Plant, Europe's largest, gets its cooling water from the reservoir. It is located on the southern side, now under Russian control.

"Our current assessment is that there is no immediate risk to the safety of the plant," International Atomic Energy Agency chief Rafael Grossi said.

He said it was essential that a cooling pond be left intact as it supplied enough water for the cooling of the shut-down reactors.

"Nothing must be done to potentially undermine its integrity," Grossi said.



Foreign Students Seek to Quit Harvard amid Trump Crackdown 

People walk near Harvard University on May 28, 2025 in Cambridge, Massachusetts. (Getty Images/AFP)
People walk near Harvard University on May 28, 2025 in Cambridge, Massachusetts. (Getty Images/AFP)
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Foreign Students Seek to Quit Harvard amid Trump Crackdown 

People walk near Harvard University on May 28, 2025 in Cambridge, Massachusetts. (Getty Images/AFP)
People walk near Harvard University on May 28, 2025 in Cambridge, Massachusetts. (Getty Images/AFP)

Harvard University has been flooded with requests from foreign students to transfer to other institutions as US President Donald Trump's administration seeks to ban it from hosting international scholars, a staff member said Wednesday.

"Too many international students to count have inquired about the possibility of transferring to another institution," Maureen Martin, director of immigration services, wrote in a court filing.

Trump has upended the United States' reputation among foreign students, who number around one million, as he presses a campaign against US universities he sees as obstructing his "Make America Great Again" populist agenda.

He has blocked Harvard from hosting international scholars in a maneuver being challenged legally, targeted non-citizen campus activists for deportation, and most recently suspended student visa processing across the board.

The president's crackdown has prompted "profound fear, concern, and confusion" among students and staff at the elite university, which has been "inundated with questions from current international students and scholars about their status and options", Martin wrote.

More than 27 percent of Harvard's enrollment was made up of foreign students in the 2024-25 academic year, according to university data.

"Many international students and scholars are reporting significant emotional distress that is affecting their mental health and making it difficult to focus on their studies," Martin wrote in the filing.

Some were afraid to attend their graduation ceremonies this week or had canceled travel plans for fear of being refused re-entry into the United States, she added.

She said that a handful of domestic students at Harvard had also "expressed serious interest" in transferring elsewhere because they did not want to attend a university with no international students.

A judge last week suspended the government's move to block Harvard from enrolling and hosting foreign students after the Ivy League school sued, calling the action unconstitutional.

A hearing into the case was scheduled for Thursday.

At least 10 foreign students or scholars at Harvard had their visa applications refused immediately after the block on foreign students was announced, including students whose visa applications had already been approved, Martin wrote.

"My current understanding is that the visa applications that were refused or revoked following the Revocation Notice have not yet been approved or reinstated," despite a judge suspending the move, she said.