The U.S. Treasury imposed sanctions on Gazprom Neft and Surgutneftegas, which explore for, produce and sell oil as well as 183 vessels that have shipped Russian oil, many of which are in the so-called shadow fleet of aging tankers operated by non-Western companies. The sanctions also include networks that trade the petroleum.

The Biden administration on Friday imposed its broadest package of sanctions yet targeting Russia's oil and gas revenues in an attempt to give Kyiv and the incoming administration of Donald Trump leverage to reach a deal for peace in Ukraine.

The United States will impose some of the harshest sanctions yet on Russia's oil industry, according to a purported U.S. Treasury document circulating among traders in Europe and Asia that drove global oil prices 3% higher on Friday.

North Korea is learning valuable lessons from fighting against Ukraine, making it an increased threat to its neighbors, a US official said. In recent months, North Korea has sent around 12,000 troops to fight for Russia against Ukraine as part of a new security pact between its leader,

The United States warned on Wednesday that North Korea is benefiting from its troops fighting alongside Russia against Ukraine, gaining experience that makes Pyongyang "more capable of waging war against its neighbors.