U.S. presidential candidate Mitt Romney began a short visit to Israel Sunday by meeting with his longtime friend Israeli Prime Minister Benjamin Netanyahu.

Mr. Netanyahu told the presumptive Republican nominee that he agrees with his stance that the greatest danger facing the world is the potential for a nuclear-armed Iran.

In his public comments, Romney did not go as far as one of his foreign policy advisers, who told reporters that if elected, the former governor would not try to stop Israel from attacking Iran's nuclear sites. Romney said during an appearance on CBS television that he did not want to diverge from official U.S. policy on a trip. But he appeared to endorse the Obama administration's stance of discouraging any military action against Iran while talks are under way.

Romney also met with Palestinian Prime Minister Salam Fayyad while in Jerusalem, but officials did not immediately release details of their meeting.

The candidate arrived in Israel Saturday night from Britain, where he attended the opening of the London Olympic Games. He travels on to Poland Monday, the last stop on his tour.