The United States has cut off ceasefire negotiation talks with Russia aimed at decreasing the violence in Syria. The U.S. says it has suspended the negotiations over Russia’s role in the ongoing bombing campaign in eastern Aleppo. In response, Russia pulled out of an arms control agreement that requires both the U.S. and Russia to dispose of plutonium, a nuclear weapons material. This is White House Press Secretary Josh Earnest.

Press Secretary Josh Earnest: “Well, I think what is clear is the Obama administration has concluded that Russia has no intention of living up to the commitments that they’ve made in the context of negotiations around a cessation of hostilities. And once you’ve reached that conclusion, I’m not really sure what else there is to talk about. And again, I’m not papering over the tragic consequences that this is going to have for Syria.”

The United States’ suspension of talks comes as the opposition Aleppo Media Center says eastern Aleppo’s M10 hospital was hit by “bunker-buster” bombs Monday, killing seven and marking the third attack on this major hospital in less than a week.