 Russia accused Ukraine on Wednesday of attacking the Kremlin with drones overnight in a failed attempt to kill President Vladimir Putin. A senior Ukrainian presidential official denied the accusation and said it indicated Moscow was preparing a major terrorist provocation. The Kremlin said Russia reserved the right to retaliate, and hardliners demanded swift retribution against Ukrainian President Volodymyr Zelensky. One presidential adviser Mikhail Potoliak said in comments sent to Reuters, Ukraine has nothing to do with drone attacks on the Kremlin. We do not attack the Kremlin because, first of all, it does not resolve any military tasks. The powerful speaker of the lower house of Russia's parliament, Vyatyslav Volodin, demanded the use of weapons capable of stopping and destroying the key of terrorist regime. RIA said Putin had not been in the Kremlin at the time and was working on Wednesday at his Novo Ogoryovo residence outside Moscow. The state news agency TAS said Victory Day Parade, for which the Kremlin last week announced tighter security, would still go ahead.