President Volodymyr Zelenskyy has had a telephone conversation with British Prime Minister Rishi Sunak.
Zelenskyy said on social media that the parties discussed the situation at the frontline, Ukraine's defence needs and increased support, as well as planned international events.
"I thanked him for condemning the inhumane execution of a Ukrainian soldier. Together we have to stop the aggressor and put an end to terror!" the president stressed.
Zelenskyy and Sunak had a previous phone conversation in mid-March.
In late March, Defence Minister Oleksiy Reznikov confirmed the receipt of British Challenger 2 tanks.