Russia accused Ukraine on Wednesday of a failed attempt to assassinate Putin in a drone attack on the Kremlin citadel in Moscow, and threatened to retaliate.

Ukrainian President Volodymyr Zekenskiy said Kyiv had nothing to do with the reported incident.

Shortly after the Kremlin announcement, Ukraine reported alerts for air strikes over the capital Kyiv and other cities.

Russia said that two unmanned aerial vehicles were aimed at the Kremlin.