What we know so far about the alleged drone attack on the Kremlin

Russian law enforcement officers stand guard in Red Square, with people seen on the dome of the Kremlin Senate building in the background, in central Moscow, Russia, on May 3, 2023 [Evgenia Novozhenina
/Reuters]

Russia has threatened to retaliate against Ukraine for a failed attempt to assassinate President Vladimir Putin in an alleged drone attack on the Kremlin citadel in Moscow.

Kyiv has denied any involvement and accused Russia of readying itself for a major offensive in Ukraine.