"The assertion of the indefinite retention of the aircraft wreckage by the Russian side has no basis," Zakharova wrote in Telegram.

According to her, the Polish side was repeatedly informed about the rules of the procedure for the return of material evidence.

“The Russian Foreign Ministry and other relevant departments have already repeatedly stated that until the completion of investigative actions in our country, which are carried out, inter alia, on the basis of more and more new requests from the Polish side, as well as the adoption of a final procedural decision, material evidence must be located on the territory of the Russian Federation. ", - said Zakharova.

Kaczynski's plane crashed in 2010 while landing at Smolensk-Severny airport, killing 96 members of the Polish delegation.