The rift over Edward Snowden comes as the United States and Russia continue to split over the crisis in Syria. A round of talks in Geneva on Tuesday ended with no agreement on when to hold an international peace conference and whom to invite. The two sides have clashed over whether to include Iran in the talks and which parties would represent the Syrian opposition. The U.N. envoy to Syria, Lakhdar Brahimi, said differences among Syrian rebels would delay any potential conference at least through July.

Lakhdar Brahimi: “I doubt whether the conference will take place in July. The opposition are — they are meeting. I think their next meeting is on the 4th and 5th of July, so I don’t think they will be ready.”

According to the United Nations, more than 93,000 people have died and some 1.7 million people have been displaced since the Syrian conflict erupted in March 2011.