Prime minister raises the issue on sidelines of the Asia-Europe Meeting (ASEM) in Ulaanbaatar.
Possible route could see 400km/hour bullet train pass through heart of Siberia and Altai region with stops in major cities.
Dramatic measures unveiled to boost the economy in Eastern Siberia and Russia's Pacific territories.
Customs procedures and rules on foreigners staying in duty-free region will be relaxed in move that will bolster the economy and boost trade from 2016.
More than a dozen animals killed by self-appointed executioner and dumped by a river near lakeside town.
Tributes to the dead and prayers for the 34 injured including 27 students, acrobats with a Nefteyugansk sports club.
Jessica is going to Siberia to see her biological mother Natalia, 38, and father Oleg, 37.
Major engineering achievement will connect Russia’s largest region to Moscow by train for the first time.
A Copenhagen scientific expedition is on its way to prepare a claim that vast energy wealth under the Arctic belongs to the Danish Crown.