Russia's Ambassador to Malaysia says that experts have confirmed the black boxes of Malaysia Airlines Flight MH 17 have not been tampered with.
The comment comes after Ukrainian rebels handed over two black boxes to Malaysian officials in the Ukrainian city of Donetsk.
Lyudmila Vorobyeva is the Russian Ambassador to Malaysia.
"The black boxes have been handed over to Malaysian experts and Malaysian experts have certified that they were not tampered with. That are the words by Malaysian experts."
The rebels have also announced a ceasefire within a 10 kilometer radius around the crash site to allow international investigators to access the area.
The move comes on the heels of a United Nations Security Council resolution, demanding the armed groups allow unrestricted access to the crash site.
The council unanimously adopted an Australian-drafted resolution calling for a thorough and independent international investigation.
China's envy to the UN says the International Civil Aviation Organization should play a crucial role in the investigation.
China's permanent representative to the UN Liu Jieyi:
"China supports an independent, impartial and objective investigation into this incident. As a specialized agency of the UN dealing with international civil aviation affairs, the International Civil Aviation Organization should play a crucial role in this international investigation. China calls on all parties to cooperate with this international investigation."
Liu also says the current focus should be the establishment of truth of the crash, saying all sides should not jump to any conclusions.
Several nations, including the US and the UK, have been accusing the Ukrainian rebels of shooting down the plane with a weapons system provided by Russia.
Moscow has denied the accusation, saying it has not supplied the Ukrainian rebels with the Buk anti-aircraft missile system.
Meanwhile, European Union countries are mulling further sanctions against Russia.
The plane crashed in the rebel-controlled area of eastern Ukraine, killing all 298 people onboard.
