An unusual flying object disrupted an anti-government rally held by Russian chess champion turned Kremlin critic, Garry Kasparov, press reports said Thursday.
Kasparov's plea for unity against Vladimir Putin – being delivered to a group of 500 Kremlin critics in Moscow – was interrupted when a remote-controlled flying penis flew through the room.
The device - which appeared to be a modified twin-rotor toy helicopter - caused an immediate commotion, UK daily the Metro reported.
A video taken at Wednesday's event shows the chopper briefly evading capture before a security guard leaps from the stage and swats it down.
According to the Moscow Times website, the prank was staged by "a couple of pro-Kremlin Young Russia activists" who had launched a "plastic phallus on propellers".
"I think we have to be thankful for the opposition's demonstration of the level of discourse we need to anticipate," said Mr. Kasparov after the attack, according to Canada's National Post newspaper.
"Also, apparently most of their arguments are located beneath the belt," he added.
Kasparov -- who was famously beaten at his own game by IBM's Deep Blue more than a decade ago -- was arrested and jailed by Russian police for his activism last year.