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.

Russia said it intercepted more than 100 Ukrainian drones fired at almost a dozen of its regions in an attack that forced all four airports around Moscow to temporarily suspend flights.

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