Iran has received fresh international warnings over its controversial nuclear program.
Israeli Prime Minister Benjamin Netanyahu has said Iran's nuclear program is nearing "the red line" when, he has warned, action will be necessary.
Netanyahu said international sanctions against Iran have so far not stopped its nuclear program. He called for new sanctions to include the threat of military action.
Netanyahu was speaking via video linkup on March 4 to a conference of the American Israeli Public Affairs Committee.
Netanyahu has suggested that Israel, the region's only assumed nuclear power, could strike Iranian nuclear sites if it feels diplomacy is not working.
U.S. Vice President Joe Biden earlier told the conference of America's largest pro-Israel lobby that "all options, including military force, are on the table" to address Iran's nuclear program.
In Saudi Arabia, U.S. Secretary of State John Kerry said a diplomatic solution to the Iranian nuclear problem "cannot by definition remain open indefinitely."
Meanwhile, Yukiya Amano, the head of the International Atomic Energy Agency (IAEA), urged Iran not to unnecessarily prolong talks about its alleged nuclear weapons program.
Iran has repeatedly denied Western charges it is secretly developing nuclear weapons.
Based on reporting by AP and Reuters