The Palestinian leadership asked the United States to reveal its efforts in convincing Israel to stop Jewish settlement building, a Palestinian official said Wednesday. 'The United States has not yet allocated a final date to respond to its efforts with Israel,' said Yasser Abed Rabbo, a senior official from Palestine Liberation Organization (PLO). In October, the Arab League gave Washington one month to convince Israel to stop building settlements in the West Bank. The ultimatum followed a quick breakdown of the U.S.-brokered peace talks in September, when Israel allowed a partial moratorium on construction to expire. Abed Rabbo said Washington, which brokered the negotiations, ' should respond as soon as possible,' especially after Israel revealed plans to build some 1,000 houses in East Jerusalem, which the Palestinians want as a future capital. As Israel doesn't seem to halt the building, Abed Rabbo said, there was nothing left for the Palestinians 'but to go to the Security Council' to seek an international recognition of a Palestinian state. Israeli Prime Minister Benjamin Netanyahu, in his recent visit to the United States, asked Israel's 'friends' to block any unilateral Palestinian attempt to declare statehood. 