West agrees to bar major Russian banks from international payments system as Russia attacks oil facilities in Kharkiv and south-west of Kyiv

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Russian troops have entered Kharkiv, Ukraine’s second-largest city, an adviser to Ukraine’s interior minister and other officials have said. Governor Oleg Sinegubov said “there has been a breakthrough in light equipment including in the central part of the city”, and urged people to stay indoors.

Western allies have agreed to block Russia’s access to the Swift international banking payment system. The US, Canada and key European countries, including Germany, have agreed to remove “selected Russian banks” from the Swift payment system, the countries announced on Saturday.

Ukraine’s president, Volodymyr Zelenskiy has rejected Russia claims that it is “ready for talks” with Ukraine in Belarus. In a national address on Sunday morning, Zelenskiy said he remained open to talks, but in other locations that are not showing aggression towards Ukraine. Earlier, Kremlin spokesperson Dmitry Peskov had told reporters the Russian delegation had arrived in Belarus for talks and were “now waiting for the Ukrainians”.

There are reports that a gas pipeline is on fire in Kharkiv after a Russian attack, while an oil terminal in Vasylkiv, south-west of the capital, Kyiv, has also been targeted. The government has warned that smoke from the explosion in Kharkiv could cause an “environmental catastrophe” and advised people to cover their windows.

The 13 Ukrainian soldiers who were reportedly killed while defending an island in the Black Sea from an air and sea bombardment – reportedly telling a Russian navy warship to “go fuck yourself” when asked to surrender – may still be alive, according to Ukrainian officials.

The United Nations security council is due to vote on Sunday to call for a rare emergency special session of the 193-member General Assembly on the invasion, diplomats said. The vote needs nine votes in favour and cannot be vetoed. Diploamts say it is likely to pass, diplomats said. Only 10 such emergency special sessions have been convened since 1950.

Britain is preparing a “hit list” of Russian oligarchs to be targeted by sanctions in the coming months, the foreign secretary, Liz Truss, has said.

Truss said there would be “nowhere left to hide” for the super-rich allies of Vladimir Putin’s Kremlin. She told the Sunday Times that new names would be added to the list every few weeks as ministers seek to ratchet up the pressure on Putin.

Liquor stores and bars in the US and Canada are targeting Russia’s national drink in a show of unity with the people of Ukraine. Shelves in both countries are being stripped of Russian vodka, with the Republican governor of New Hampshire, Chris Sununu, announcing on Saturday the removal of “Russian-made and Russian-branded spirits from our liquor and wine outlets until further notice”.

Japanese billionaire Hiroshi ‘Mickey’ Mikitani has said he will donate $8.7m to the government of Ukraine, calling Russia’s invasion “a challenge to democracy”. The founder of e-commerce giant Rakuten said in a letter addressed to Volodymyr Zelenskiy that the donation of 1bn yen ($8.7m) will go toward “humanitarian activities to help people in Ukraine who are victims of the violence”, Agence France-Presse reported.

A Ukrainian company in charge of building and maintaining roads said it was removing all road signs that could be used by invading Russian forces to find their way around the country. The company, Ukravtodor, said in a Facebook post: “The enemy has poor communications, they cannot navigate the terrain. Let us help them get straight to hell.”