Russia insists it has not supplied its weapons to Ukraine, BBC.
Kremlin spokesman Dmitry Peskov said there are still lots of unclear things and lots of contradictions about the downing of flight MH17.
Interviewd on BBC's HARDtalk's, Kremlin spokesman said the findings from the investigation were preliminary, thus, "there was nothing to accept or deny."
"We know the devil is inside those details and unfortunately we are still missing lots of the details," he added.
International investigation team concluded the Buk missile hit the MH17 over eastern Ukraine in 2014 had been brought from Russia.
Investigators also narrowed down the area it was fired from to a field in territory controlled by Russian-backed rebels.
All 298 people on board the Boeing 777 died when it broke apart in mid-air flying from Amsterdam to Kuala Lumpur.
Russia has claimed no Russian weapons crossed the Ukrainian border.