Moscow has been very concerned about protecting the Kremlin from drones since at least 2015 when it began using electronic countermeasures to automatically direct them away by "spoofing" GPS location
White House national security spokesman John Kirby called the claims "obviously ludicrous."
The Kremlin said two drones had been used in the alleged attack on Putin's residence in the Kremlin citadel, and Ukraine declined responsibility.
The Kremlin has repeatedly dismissed speculation that Putin, Russia's paramount leader since 1999, is ill.
Nikolai Peskov, son of Russian President Vladimir Putin's spokesman Dmitry Peskov, was born in 1990 and lived in Britain in the decade following the 1991 fall of the Soviet Union.
Vadym Novynskyi, whose wealth is estimated by Forbes at $1.4 billion, is one of the country's richest men, an ex-lawmaker and a sponsor of the Ukrainian Orthodox Church.
Footage shared by state media outlets showed a thin plume of dark smoke rising from the defense ministry's headquarters in Moscow.
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