Ukrainian forces have targeted the infrastructure of Russia's gas pipeline to Turkey, Russia’s Defense Ministry said.

Ukraine's president said the decisions made at the NATO summit in Washington have still not been fully implemented.

Russia has vowed to respond to Washington’s “hostile actions” after the US imposed sanctions against its energy sector, saying it will continue its large oil and gas projects despite sweeping bans.

US President-elect Donald Trump says he is working to set up a meeting with Russian President Vladimir Putin.

Russia says its air defense forces shot down 8 US-supplied ATACMS missiles.

Putin has ordered the government and Sberbank, the country's largest bank, to enhance collaboration with China in the field of artificial intelligence.

Azerbaijan's President Ilham Aliyev says the country's crashed jetliner was shot down by Russia unintentionally.