British Prime Minister Boris Johnson announced that Russia would be facing the “largest” set of economic sanctions ever seen in response to the full-scale invasion launched against Ukraine.

Johnson labeled Russian President Vladimir Putin as a “blood-stained aggressor,” saying that he will “never be able to cleanse the blood of Ukraine from his hands” while announcing a long list of sanctions aimed at freezing assets from Russian banks and ending the use of the SWIFT international payment system, the Guardian reported.