Chances of a breakthrough appear slim when Iran’s main nuclear negotiator meets Europe’s top diplomat on Friday in a last effort to avert tougher sanctions over Tehran’s disputed atomic program.

Israeli Prime Minister Ehud Olmert said after peace talks in Washington that failure to negotiate a two-state solution with the Palestinians could threaten Israel’s long-term survival.

A senior Russian envoy has been trying to broker a deal between Israel and Syria on the future of the Golan Heights, an Israeli newspaper said on Thursday.