<p>Ukraine's nuclear operator Energoatom on Tuesday reported what it called an "unprecedented" cyberattack on its website, but said its operations had not been disrupted.</p>.<p>"On August 16, 2022, the most powerful cyberattack since the start of the Russian invasion occurred against Energoatom's website," the operator said on Telegram.</p>.<p>It "was attacked from Russian territory".</p>.<p>The Russian "popular cyberarmy" group used more than 7 million internet bots to attack the website for three hours, Energoatom said.</p>.<p>But the assault "did not have a considerable impact on the work of the Energoatom website".</p>.<p>A Telegram channel called "popular cyberarmy" in Russian around midday called on its followers to attack the Ukrainian nuclear operator's website.</p>.<p>But by Tuesday evening, it had announced a "change" in plans, redirecting supporters to a new target -- the Ukrainian Institute of National Remembrance, whose website was sluggish.</p>.<p>The cyberattack comes as tensions flare over the Zaporizhzhia power plant in the south of the country, which Russian forces occupied in March, shortly after invading its pro-EU neighbour.</p>.<p>Russia and Ukraine have accused each other of shelling the nuclear installation, which is the largest in Europe, sparking fears of a nuclear accident.</p>.<p>Ukraine counted on four nuclear power stations to supply it with around half of its electricity supply before Russia's invasion on February 24.</p>.<p>Ukraine was the site of the world's worst nuclear accident in 1986, when the Chernobyl power station's reactor number four exploded.</p>.<p>The power station's three other reactors were successively closed down, with the latest shutting off in 2000.</p>.<p>Russian troops on the first day of the invasion seized the Chernobyl plant, occupying it and a highly radioactive exclusion zone around the complex for several weeks.</p>
<p>Ukraine's nuclear operator Energoatom on Tuesday reported what it called an "unprecedented" cyberattack on its website, but said its operations had not been disrupted.</p>.<p>"On August 16, 2022, the most powerful cyberattack since the start of the Russian invasion occurred against Energoatom's website," the operator said on Telegram.</p>.<p>It "was attacked from Russian territory".</p>.<p>The Russian "popular cyberarmy" group used more than 7 million internet bots to attack the website for three hours, Energoatom said.</p>.<p>But the assault "did not have a considerable impact on the work of the Energoatom website".</p>.<p>A Telegram channel called "popular cyberarmy" in Russian around midday called on its followers to attack the Ukrainian nuclear operator's website.</p>.<p>But by Tuesday evening, it had announced a "change" in plans, redirecting supporters to a new target -- the Ukrainian Institute of National Remembrance, whose website was sluggish.</p>.<p>The cyberattack comes as tensions flare over the Zaporizhzhia power plant in the south of the country, which Russian forces occupied in March, shortly after invading its pro-EU neighbour.</p>.<p>Russia and Ukraine have accused each other of shelling the nuclear installation, which is the largest in Europe, sparking fears of a nuclear accident.</p>.<p>Ukraine counted on four nuclear power stations to supply it with around half of its electricity supply before Russia's invasion on February 24.</p>.<p>Ukraine was the site of the world's worst nuclear accident in 1986, when the Chernobyl power station's reactor number four exploded.</p>.<p>The power station's three other reactors were successively closed down, with the latest shutting off in 2000.</p>.<p>Russian troops on the first day of the invasion seized the Chernobyl plant, occupying it and a highly radioactive exclusion zone around the complex for several weeks.</p>