Some British embassy staff and their dependants are being pulled out of Kyiv in response to the mounting Russian threat to Ukraine.
The UK Foreign Office confirmed the move after the United States ordered the families of all American personnel at the US embassy to leave the country in response the the risk of an invasion.
Russian forces have massed at the border with Ukraine and intense diplomatic activity has failed to ease tensions.
The Foreign Office said on Monday: "Some embassy staff and dependants are being withdrawn from Kyiv in response to the growing threat from Russia.
"The British embassy remains open and will continue to carry out essential work."
The UK believes there is a significant risk that Russian president Vladimir Putin will launch a full-scale invasion of Ukraine.
Foreign Secretary Liz Truss has accused the president of plotting to install a pro-Moscow leader as head of the Ukrainian government.
The Foreign Office took the unusual step of naming former Ukrainian MP Yevhen Murayev as a potential Kremlin candidate to take over in Kyiv - a claim dismissed as provocative "nonsense" by Moscow.
Deputy Prime Minister Dominic Raab warned on Sunday there was a "very significant risk" of a Russian invasion of its neighbour.
Australian Associated Press