The UK prime minister, Rishi Sunak, is visiting Ukraine on Friday to meet his counterpart, Volodymyr Zelenskiy, as the UK announced it would provide further military aid to the country over the coming year.

The UK has been one of Kyiv’s staunchest supporters since Russia’s invasion and Sunak said Britain would boost its support in the next financial year to £2.5bn, an increase of £200m on the previous two years.