More than a dozen countries have urged their citizens to leave Ukraine amid warnings from Western powers that an invasion by Russia could be imminent.
The US, UK and Germany are among those who told their nationals to leave.
Moscow has amassed an estimated 100,000 troops along Ukraine’s border but denies any intent to invade.
Ukraine’s President Volodymyr Zelensky said on Saturday that invasion warnings could stoke panic, which he called “the best friend of our enemies”.
The White House has warned that an invasion could happen at any time, and could begin with bombing from the air. Russia characterised such allegations as “provocative speculation”.
Non-essential staff have been ordered to leave the US Embassy in Ukraine’s capital Kyiv, and consular services will be suspended from Sunday, although “a small consular presence” will remain in the western city of Lviv “to handle emergencies”.
Canada is also moving its embassy staff to Lviv, near the border with Poland, Canadian media reported. UK ambassador to Ukraine Melinda Simmons tweeted that she and a “core team” are staying in Kyiv.
Russia itself is also making changes, saying it would “optimise the staffing” of its diplomats in Ukraine, citing “possible acts of provocation by the Kyiv regime or third countries”.
The US has also pulled some 150 troops who were training Ukrainian soldiers out of the country, citing an abundance of caution. And Dutch airline KLM announced it would stop flying to Ukraine, effective immediately, Dutch media said.
Mr Zelensky said that if Western powers had any firm evidence of an impending invasion, he had yet to see it.
“I think there is too much information in the media about a deep, full-scale war,” he said.
“We understand all the risks, we understand that they exist. If you or someone else has additional 100% reliable information about the Russian Federation’s invasion of Ukraine… please share it with us.”
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Many countries, including Australia, Italy, Israel, the Netherlands and Japan have told their citizens to leave Ukraine. Some have also evacuated diplomatic staff and their families.
Diplomatic efforts are continuing on multiple fronts. French President Emmanuel Macron spoke to Russian leader Vladimir Putin for more than 90 minutes by phone on Saturday, telling him that “a sincere dialogue was not compatible with escalation”, according to notes released by the French embassy.
US President Joe Biden then spoke to the Russian president for just over an hour. US Secretary of State Antony Blinken had earlier told his Russian counterpart, Mr Lavrov, that diplomatic channels remained open.
With foreign embassies withdrawing staff and a host of countries now telling their citizens to leave Ukraine, Kyiv still doesn’t feel like a city in crisis.
The government here is telling people to stay calm and united and, in the words of a statement this morning, refrain from actions that undermine stability and sow panic. President Zelensky said the country had to be ready for any eventuality.
Across Ukraine, foreign citizens are now making hurried plans. Stuart McKenzie, who’s lived in Kyiv for 28 years and runs a successful business, hopes to get his wife and two sons out on a flight. But he is ready, if necessary, to pack the family into the car and drive 300 miles to Poland. He loves Ukraine and can’t quite believe it’s come to this.
At the British Embassy, we found tight-lipped staff loading bags into a car and driving off. No-one seemed keen to talk.
Not far to the north, across the border in Belarus, Russia’s war games are now well under way. Russian defence ministry pictures, released this morning, showed multiple rocket launchers being fired. Moscow still says it has no plans to invade. But there’s a lot the Russians can do without ever setting foot inside Ukraine.
In Kyiv, meanwhile, several thousand people marched through the city on Saturday, chanting slogans pledging loyalty to Ukraine and resistance to any Russian invasion. The march was organised by a right-wing nationalist group called Gonor and anti-Zelensky far-right activist Sergiy Sternenko, but it attracted a wider crowd.
BBC reporter Eleanor Montague says the demonstration was not huge, but was the first significant manifestation of public feeling since tensions escalated, finishing at the symbolic Maidan Square.
Sasha Nizelska, who works as a nanny in Kyiv, told the BBC that she would resist a Russian attack with all means in her power. The sentiment was repeated by people of all age groups attending the demonstration.
Tensions have steadily increased as Russia has continued to deploy troops along Ukraine’s eastern border. Russian troops are also staging military exercises in Belarus to the north, while naval exercises in the Sea of Azov in the south-east have led to accusations that Russia is blocking Ukraine’s access to the sea.
