“It was a great honor to have a conversation with Ukrainian President Volodymyr Zelensky this evening.
Both he and the Ukrainian people can count on continued solidarity and support from the UK,” RIA Novosti quoted Sunak as saying on Twitter.
He added that Britain will always be with Ukraine.
On October 25, Rishi Sunak took office as Prime Minister of Great Britain, having received a mandate to form a government from Charles III.