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What we know — day 9: FRIday March 4
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Russians have seized Europe’s largest nuclear power plant at Zaporizhzhia after a fire blazed for hours, following an alleged Russian attack before being extinguished early on Friday.
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The State Nuclear Regulatory Inspectorate of Ukraine said that employees of the plant were continuing to work and that they were carrying out inspections to identify any damage to the site. However, the agency said that any loss of the power station’s ability to cool down nuclear fuel would lead to “significant radioactive releases into the environment”.
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Mariupol suffered another night of brutal bombardment. The port city, home to almost half a million people, is surrounded by Russian troops and lacking food, water and electricity.
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There were reports of fighting in the urban centres of Enerhodar, close to the Zaporizhzhia nuclear power plant, and Severodonetsk overnight.
Key maps from recent days
The number of refugees pouring out of Ukraine to flee the fighting has doubled this week to hit 1mn since Russia invaded, the UN refugee agency reported.
More than half of the refugees have travelled to Poland, with Hungary and Moldova among other important destinations. The UNHCR said almost 50,000 refugees had gone to Russia.

In the UK, the Office for National Statistics has released preliminary data from the 2021 census that shows the distribution of Ukrainian and Russian diasporas in England and Wales.
Ukrainians fleeing their homeland could be housed in the lavish UK residences of oligarchs hit with sanctions under proposals discussed by the British government. The ONS data shows distinct patterns of Ukrainian and Russian residents in London.
The war in Ukraine has led to a reduction in the number of international commercial flights going into Russia, according to data from consultant VesselsValue.

Russia’s multipronged invasion suggests a plan to advance south towards Kyiv from Belarus, encircle Ukraine’s forces in the east, and cleave the country from the Russian border to the Black Sea.

On Tuesday February 22, Putin recognised the separatist governments in Luhansk and Donetsk, two provinces in the eastern Donbas region of Ukraine, and ordered Russian troops to enter them. On Thursday February 24, Moscow began a full-scale invasion of the country.

Sources: Institute for the Study of War, Rochan Consulting, FT research
Cartography and development by Steve Bernard, Chris Campbell, Emma Lewis, Joanna S. Kao, Sam Learner, Ændra Rininsland, Niko Kommenda, Alan Smith and Martin Stabe. Based on reporting by Roman Olearchyk and John Reed in Kyiv, Guy Chazan in Lviv, Max Seddon in Moscow and Henry Foy in Brussels