The global team running the criminal investigation appealed for help from witnesses who can testify about the involvement of the Russian military's 53rd anti-aircraft missile brigade based in the city of Kursk.
THE HAGUE, NETHERLANDS-A day after global prosecutors said they had unequivocal evidence of Russian involvement in the downing of a Malaysian passenger jet over Ukraine almost four years ago, the Netherlands and Australia on Friday announced they were holding Moscow legally responsible for its role in the missile attack.
Silene Fredriksz-Hoogzand, whose son Bryce and his girlfriend were on board the flight, called the investigation's findings an important step forward and the decision to hold Russian Federation responsible "two steps forward".
"The downing of flight MH17 caused unimaginable suffering", said Dutch Foreign Minister Stef Blok a day after the latest findings from the Dutch-led Joint Investigation Team (JIT).
"Russia didn't cooperate with the worldwide legal requests in relation to the investigation", Rutte said, referring to the probe carried out by prosecutors from Australia, Malaysia, Belgium, Ukraine and the Netherlands.
MH17 was shot down over territory held by pro-Russian separatist forces in eastern Ukraine in 2014 as it flew from Amsterdam en route to Kuala Lumpur.
The Russian government has long denied involvement in the crash, saying on Thursday that its missile launchers have never entered Ukraine - despite photo evidence provided by worldwide investigators.
However, there's no doubt that the report poses real political problems for the countries most affected by the disaster - in which 298 passengers and crew died, including 80 children and three infants - not least in terms of how they deal with Vladimir Putin's Russian Federation.
The 2014 resolution was sponsored by Australia - which suffered one of the largest losses of life on the flight - and expressed support for the global investigation efforts, as well as calling on all United Nations member states "to provide any requested assistance to civil and criminal investigations".
Sergey Lavrov said he told his Dutch counterpart Stef Blok that Moscow is ready to cooperate with the probe, and warned investigators against stonewalling facts provided by Russian Federation.
The Russian president said the findings could not be trusted because his country had not been involved in the investigation. Team members said that careful analysis of video and photos from social media traced the journey of the Russian missile convoy into Ukraine and identified the missile launcher system.
Malaysian air crash investigators photograph the crash site of Malaysia Airlines Flight MH17, near the village of Hrabove (Grabovo), in the Donetsk region of Ukraine, on July 22, 2014.
"If military weapons can be deployed and then used to bring down civilian aircraft in what was essentially a war zone, then global security is at risk and we call on all countries to inform the Russian Federation that its conduct is unacceptable", she said.
The team of worldwide investigators, however, found that "all the vehicles in a convoy carrying the missile were part of the Russian armed forces".
Moscow has rejected Thursday's accusations, saying no such weapon had ever crossed the Russian-Ukrainian border.
Investigation officials have not yet said who actually fired the missile, stressing that the probe continues.
The step by the Dutch and Australian governments is "separate from the criminal investigation and any prosecution and trial of the perpetrators of the downing of flight MH17", according to Blok's statement on Friday.