The U.N. Mideast envoy says Israel and the Palestinians are further apart than ever from achieving a peace agreement that would lead to a two-state solution.

Nickolay Mladenov warned the U.N. Security Council on Thursday that "the rise of violent extremism and terrorism" in the region poses as much a danger to Palestinian aspirations to statehood as to Israel's security.

He said support for a Palestinian state existing alongside Israel in peace and security "is fading away" and threatened by Israel's occupation of Palestinian territory and settlement construction there, violence and security problems and lack of Palestinian unity.

Mladenov urged the international community to work with Israelis and Palestinians to return "to meaningful negotiations on the basis of an agreed framework and within a reasonable timeframe."