The US has vowed to stop "any provocative activities" by Israel in a bid to resume Middle East peace talks, Palestinian Authority President Mahmoud Abbas has claimed.In an interview with the Chinese Xinhua news agency on Wednesday, Abbas said when "the credibility of the US pledges are demonstrated," the negotiations "would restart immediately."The PA president criticized Washington for "not exerting enough effort to press Israel to achieve peace,." but reiterated his opposition to a unilateral declaration of statehood. "We want our state to be declared under an international agreement," he said. "If this doesn't happen, the Arabs will go to the UN Security Council to get the recognition of the Palestinian statehood," the PA president told Xinhua.