Wreckage of flight MH17 is seen after the presentation of the investigation report on the cause of its crash, at the Gilze-Rijen air base, the Netherlands, on Oct. 13, 2015. (Xinhua/Sylvia Lederer)

MOSCOW, Sept. 29 (Xinhua) -- Russian parliament's lower house State Duma finds conclusions of the Joint Investigation Team (JIT) about the MH17 plane crash are highly politicized and not relevant to the truth of the tragedy, Russian news agency Sputnik reported Thursday.

Earlier Wednesday, JIT, consisting of representatives of the Netherlands, Australia, Malaysia, Belgium and Ukraine, announced that the airplane had been hit by an anti-aircraft Buk missile from the territory controlled by pro-Russian insurgents.

"The conclusions are aimed at only one thing -- to further marginalized the image of Russia in the international political and informational space," said Leonid Slutsky, chairman of the Russian State Duma Committee on the Commonwealth of Independent States and Eurasian Integration.

The experts relied on information from social networks and intercepted phone conversations, while experimental conclusions and radar data submitted by Russia are still not examined and taken into account, Slutsky was quoted as saying by Sputnik.

Slutsky said the experts of the Interstate Aviation Committee and other organizations would scrutinize the materials that had brought JIT to such conclusions.

The Boeing 777 crashed in eastern Ukraine on July 17, 2014 while flying from Amsterdam to Kuala Lumpur. All 298 people on board died, most of them Dutch citizens.