Dmitry Kolker, a doctor of physics and mathematics at Novosibirsk State University, was detained on charges of treason, TASS quoted judicial authorities as saying.

US Commerce Department adds 36 companies to heavily restricted Entity List, including five based in China, claiming they continue to support Russian military despite Ukraine war sanctions.

China is the second-largest contributor to Russia's import decline since it invaded Ukraine, says a report by the Peterson Institute for International Economics in Washington.

Britain, the United States, Japan and Canada announced a ban on imports of Russian gold, sales of which totalled $15bn last year, at the start of the G7 three-day summit on Sunday

The deal sets out how the pipeline crosses the Ussuri river on the China-Russia border. Gazprom recently issued a five-year plan for large-scale work on Far East gasification

China-Russia trade reached $65.81 billion in the first five months of this year, up 28.9% over 2021, according to customs data released by China on Thursday

Moscow has become increasingly frustrated by its requests for aid falling on deaf ears as Beijing has been cautious not to break US-led curbs

Head of Russia's foreign ministry's first Asia department tells news agency Interfax Russia-China trade target could be hit even sooner.

Raimondo said the US could “essentially shut” companies such as Semiconductor Manufacturing International Corporation or any Chinese company

Russia's invasion of Ukraine could spur the US and its allies to far more robust rivalry with China, and Russia, to revitalise the liberal international order, CSIS analyst says