Ukrainian President Volodymyr Zelenskyy, in an address to the nation, has urged citizens, MPs and government officials to stop political games and internal squabbling at a time he described as "one of the most difficult moments in our history" and to work in unity.

The president of Ukraine is facing a confluence of crises testing his ability to lead an increasingly weary nation nearly four years into a devastating full-scale invasion by Russia.

Ukrainian president Volodymyr Zelensky addressed the nation, telling his people they are facing one of the most difficult moments in the country's history, adding that he expected more political pressure over the next week.

A high-level U.S. military delegation arrived in Kyiv on Wednesday in a bid to revive the White House’s stalled push for an end to Russia's invasion.

It was just past 2am when Tymur Mindich crossed the border into Poland last week — a few hours before detectives descended on his Ukrainian home as part of an investigation into high-level corruption that has convulsed the war-torn country.