Russian President Vladimir Putin has told his French counterpart that the West has ignored Russia's security concerns, amid fears Russia could invade Ukraine.
US President Joe Biden has warned there is a "distinct possibility" Russia might invade Ukraine next month, the White House says.
The US has rejected Russia's demand to bar Ukraine from Nato, amid warnings Russia might invade its neighbour.
Boris Johnson faces more questions about No 10 parties from MPs later, as the results of an internal inquiry into possible lockdown breaches are due.
US President Joe Biden says he would consider personal sanctions on Vladimir Putin if Russia invades Ukraine.
Downing Street has admitted that staff gathered inside No 10 to celebrate Boris Johnson's birthday when the first Covid lockdown was still in place.
Prime Minister Boris Johnson has warned Russia that invading Ukraine would be "disastrous" and a "painful, violent and bloody business".
The US has ordered the relatives of its embassy staff in Ukraine to leave amid rising tension in the region.
French President Emmanuel Macron has warned he intends to make life difficult for people in France who have not been vaccinated against Covid-19.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.