Russia-Ukraine updates: Putin says 'certain positive movements' in negotiations

The White House on Friday did not rule out banning Russian oil imports to the U.S., saying it was "looking at ways to reduce the import of Russian oil," but showed continued reluctance in light of the impact it would have on energy prices.

“We are considering a range of options, but what's really essential is that we maintain a steady supply of global energy,” Cecilia Rouse, the chair of the White House's Council of Economic Advisers, said at the White House press briefing.

Adding, “Energy is a global market and we do not want to disrupt that market.”

Bloomberg on Friday reported that “the administration is weighing a ban on U.S. imports of Russian crude oil,” and that “conversations are taking place within the administration and with the U.S. oil and gas industry on the impact such a move would have on American consumers and the global supply,” citing unnamed “people familiar with the matter."

An expert at GasBuddy told ABC News on Thursday that banning Russian oil imports would, in fact, likely raise gas prices in the U.S.

Psaki said there wasn’t any “outside event” for which the U.S. was waiting to implement a ban, but that the White House was “mindful of not taking steps” that would raise energy prices for Americans and that the U.S. also wanted to take steps in concert with allies.

There would be a much larger impact on energy prices in Europe, which is a lot more reliant on Russian oil, according to experts.

-ABC News' Ben Gittleson

Russia's state censor, Roskomnadzor, added Twitter to its list of banned sites in the country on Friday, following a request from the Russian prosecutor general.

Earlier Friday, Roskomnadzor banned Facebook as the Russian government moves to limit dissent over the war in Ukraine.

-ABC News' Patrick Reevell

Russia's representative to the United Nations on Friday reiterated the Kremlin's claim that Ukrainian forces were responsible for the attack on the Zaporizhzhia nuclear power plant.

The representative said Russian forces came under small arms fire by a "Ukrainian sabotage group" that was stationed in a training complex building on site.

The representative claimed that Russian troops returned fire, but that as they departed, Ukrainians set the building on fire.

The Russian representative claimed Ukrainian "radicals" are under the West's "close guardianship and protection," giving them "carte blanche," and allowing them to act like "ISIS terrorists" by "hiding behind civilians and placing heavy weaponry and multiple rocket launchers in residential areas."

Ukraine, the U.S. and its allies have denied these claims.

The UN relief chief also fact-checked the Russian delegate on Monday, saying Russia's claim about Ukraine placing weapons in civilian areas was false.

- ABC News' Conor Finnegan

The majority of military capability the U.S. promised to send Ukraine, part of a $350 million package, will be delivered within the next week, a senior U.S. defense official told reporters Friday.

In addition to the U.S., 14 countries are also providing military assistance to Ukraine.

The new aid package was expedited so quickly because it has been categorized as “a presidential drawdown,” which bypasses the traditional process of congressional notification, according to the official.

According to another official, this is the largest-ever military support that falls under “a presidential drawdown."

A second official told reporters that weapons were getting into Ukraine through "multiple venues."

Instead of providing new weapons, the U.S. will provide weapons that are in the existing U.S. military arsenal and are eligible to be replaced. The official said the Ukrainians are being provided with weapons they have already received training for in the past.

"I think all of us have been tremendously impressed by how effectively the Ukrainian Armed Forces have been using the equipment that we've provided them," said the official.

Adding, "I think that Kremlin watchers have also been surprised by this, and how they have slowed the Russian advance and performed extremely well on the battlefield."

-ABC News' Luis Martinez