WATCH: Bipartisan group of senators give remarks on legislation restricting use of Russian oil

Democratic Sen. Joe Manchin is leading bicameral legislation aimed at crippling Russian’s energy export sector.

Watch the briefing in the player above.

Manchin is co-sponsor of the Ban Russian Energy Imports Act.

“What we’re banning is basically petroleum, petroleum products, crude oil, LNG (liquified natural gas), coal, mostly all fossil is coming in the United States,” said Manchin Thursday flanked by Republican and Democrats from both the Senate and House of Representatives.

“I’m as concerned now about what this could escalate into if we don’t do what we’re doing now and stop, and hopefully he will. He will understand the economics of this to his country and detriment to his own country.”

This comes as the Biden administration is ordering new sanctions against Russian oligarchs and others in President Vladimir Putin’s inner circle as Russian forces pummel Ukraine.

Those targeted by the new sanctions include Putin’s press secretary, Dmitry Peskov, and Alisher Burhanovich Usmanov, one of Russia’s wealthiest individuals and a close ally of Putin.

The U.S. State Department also announced it was imposing visa bans on 19 Russian oligarchs and dozens of their family members and close associates.

READ MORE: How to help people in Ukraine and refugees fleeing the conflict with Russia

“This measure is in direct response to what Russia is doing with with the bombing of the schools and the hospitals and the apartment buildings forcing the Ukrainians to flee their country, killing the innocents that remain and and using some of the worst weapons in the world indiscriminately to do it,” said Republican Sen. Lisa Murkowski of Alaska.

“So these are not just acts of war. They’re war crimes and there should not be a single additional American dollar allowed to finance these atrocities.”

Russian forces battled for control of a crucial energy-producing city in Ukraine’s south on Thursday and gained ground in their bid to cut off the country from the sea, as Ukrainian leaders called on citizens to rise up and wage guerrilla war against the invaders.

While the huge Russian armored column threatening Kyiv appeared bogged down outside the capital, Vladimir Putin’s forces have brought their superior firepower to bear over the past few days, launching hundreds of missiles and artillery attacks on cities and other sites around the country and making significant gains in the south.

Cutting off Ukraine’s access to the Black and Azov seas would deal a crippling blow to its economy and allow Russia to build a land corridor to Crimea, seized by Moscow in 2014.

Overall, the outnumbered, outgunned Ukrainians have put up stiff resistance, staving off the swift victory that Russia appeared to have expected.

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