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.

Widespread disruption is expected across Russia’s capital during the May 9 Victory Day parade after the Kremlin decided to shut down the city’s internet and SMS services for several hours. The decision to shut down the internet comes as a precautionary measure after Ukrainian President Volodymyr Zelenskiy made veiled threats to attack the parade