Nickolay Mladenov, the UN Special Coordinator for the Middle East Peace Process, has expressed his concern over "escalations" in the region.
"Worrying trends undermine the chances of a two-state solution," he said, adding that "the possibility of a two-state solution is in danger."
The specific escalations he referred to are the continuing wave of Arab terror and the decision to allow construction in Judea and Samaria.