Here are the latest developments in the war in Ukraine:

- Biden-Xi start talks -

US President Joe Biden and Chinese counterpart Xi Jinping begin a phone call focused on Russia's Ukraine invasion, at which the US leader is to warn of the "costs" if Beijing helps Russia.

- Strikes near Lviv airport -

Russian forces destroy an aircraft repair plant near Lviv airport but no one was hurt, Mayor Andriy Sadovyi says on the messaging app Telegram.

The western city is just 70 kilometres (45 miles) from the border with NATO member Poland.

- Peace talks 'stalled' -

Russian President Vladimir Putin accuses Ukrainian authorities of stalling talks, but added that Moscow is ready to search for solutions as he speaks with German Chancellor Olaf Scholz.

US Secretary of State Antony Blinken warns that Russia has not produced "any meaningful efforts" to end the war.

- Search for theatre survivors -

Ukraine's ombudswoman Lyudmyla Denisova says some civilians sheltering in a Mariupol theatre may have survived a bomb attack that officials have blamed on Russia.

"Work is underway to unlock the basement," she says, amid fears that up to 1,000 people may have been taking refuge underground at the time of the blast.

- Fighting in Mariupol, Lugansk -

Russian troops and their separatist allies are fighting in the centre of Mariupol, the Russian defence ministry says.

Backed by Russian troops, separatists from the self-proclaimed Lugansk People's Republic have also "liberated more than 90 percent of the republic's territory," the ministry adds.

- UK blocks Russia's RT channel -

Britain's broadcasting regulator revokes the licence of Russia's state-funded television channel RT, in the latest international repercussion for Moscow after its invasion of Ukraine.

- 'Extensive' economic fallout -  

The International Monetary Fund, World Bank and other top world lenders warn of "extensive" economic fallout from the Ukraine war and express "horror" at the "devastating human catastrophe".

- IEA urges cut in global oil consumption -

The International Energy Agency urges governments to urgently implement measures to cut global oil consumption within months following supply fears stemming from Russia's invasion of Ukraine.

- Russia scraps UN resolution -

Russia cancels plans for a UN security vote on a "humanitarian" resolution over Ukraine, after allies fail to line up in support.

Moscow failed to secure co-sponsorship of the draft text from China and India, suggesting that neither Beijing nor New Delhi were going to support it, an ambassador tells AFP.

The vote had already been postponed twice as Moscow tried to gather support.

- Russian diplomats expelled -

The three Baltic countries of Estonia, Latvia and Lithuania announce the expulsion of 10 Russian diplomats over Moscow's invasion of Ukraine.

- Top sports court upholds FIFA ban -

The Court of Arbitration for Sport refuses to suspend FIFA's ban on Russia taking part in the playoffs for the 2022 World Cup finals over the invasion.

- 3.25 million refugees -

More than 3.25 million refugees have fled Ukraine since the Russian invasion, the United Nations says, with more than two million crossing the Polish border.

- Norway boosts military spending -

Norway announces it will provide an additional three billion Norwegian kroner (308 million euros) this year to strengthen its military forces in the north near the Russian border.