This was announced by the official representative of the Russian Investigative Committee Svetlana Petrenko.
Earlier, Zelensky published a photo in which the head of the political council of the Opposition Platform - For Life party, Viktor Medvedchuk, is sitting in handcuffs.
The Ukrainian president offered to exchange the detainee for Ukrainian prisoners of war.
Press Secretary of the Russian President Dmitry Peskov noted that Medvedchuk is not a citizen of Russia and has nothing to do with the special military operation.
As noted in the Russian Foreign Ministry, Moscow considers Zelensky's proposal to exchange the arrested Medvedchuk for the military of the Armed Forces of Ukraine a dangerous trend.
They recalled that there are a lot of opposition-minded politicians and public figures in Ukraine