The proposed $8bn tunnel that could link US and Russia
US-Ukraine talks: Trump seeks to secure Russia-Ukraine peace deal
A Kremlin envoy, Kirill Dmitriev, has proposed a "Putin-Trump" rail tunnel under the Bering Strait to connect Russia and the United States.
The ambitious project envisions a 70-mile (112-km) rail and cargo link, estimated to cost $8 billion and take eight years to build.
Dmitriev, head of Russia's RDIF sovereign wealth fund, suggested the tunnel would facilitate joint natural resource exploration and symbolise unity between the two nations.
The proposal was made shortly after President Vladimir Putin and Donald Trump spoke by phone and agreed to meet in Budapest.
Dmitriev suggested Elon Musk's The Boring Company could build the tunnel, referencing historical concepts for connecting the landmasses.