Russia's three-day ceasefire in Ukraine is due to begin on Thursday, but Zelensky has dismissed the proposed truce as a "theatrical play".

Ukrainian drones attacked Moscow for the second consecutive night halting flights at four airports, Russian officials said, as the city prepares to host a major military parade expected to be attended by world leaders including China’s Xi Jinping.

The volley comes just days before a planned parade in the capital to mark the 80th anniversary of the end of World War II in Europe.