Senate Majority Leader Charles Schumer (D-N.Y.) has requested an all-Senate briefing on the conflict between Russia and Ukraine as Russian forces have entered eastern Ukrainian territories controlled by separatists.

“Leader Schumer has requested an all-Senators briefing on Russia-Ukraine,” a spokesperson for Schumer’s office said in an email on Tuesday.

The Senate is currently scheduled to be out of town until Monday. It is unclear if the Senate would meet this week or wait until lawmakers return.

Senators had been discussing a preemptive sanctions package against Russia, separate from sanctions issued by the White House, but talks broke down last week despite lawmakers saying they were closing in on a deal.

President Biden on Tuesday announced an initial round of sanctions against Russia in response to its recognition of two rebel-held areas as independent and the movement of Russian troops into those regions. Biden’s sanctions targeted Russia’s sovereign debt as well as Russian elites and their family members.

The Hill has reached out to Speaker Nancy Pelosi’s (D-Calif.) office to see if she will make a similar request for the House.

Senate Minority Leader Mitch McConnell (R-Ky.) called for the “toughest possible sanctions” against Russia on Tuesday.

“Now, the president, roughly at the same time we’re meeting here, is addressing the current situation. What I hope he’s saying, what I hope he’s saying right now, is that from a sanctions point of view, we’re gonna impose the toughest possible sanctions,” said McConnell.