Ukrainian drones attacked Moscow for the second consecutive night temporarily 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.

Attacks by Ukrainian long-range drones caused flight disruption at Moscow’s main airports for a third straight day on Wednesday, authorities said, as Russia prepared to receive the Chinese president and other foreign leaders for the annual Victory Day military parade in Red Square.