Turkish Prime Minister Recep Tayyip Erdogan has announced a freeze in trade and defense ties with Israel amid a dispute with the Jewish state. Erdogan was quoted as saying by Anatolia news agency that "we are totally suspending our trade, military, defense industry relations." The move follows the expulsion of Israel's ambassador over its refusal to apologize for the 2010 raid on a flotilla of activists heading for Gaza, in which nine Turkish activists were killed. Israeli Defense Minister Ehud Barak, speaking during a tour of an Israeli army base in the Golan area on September 6, urged restraint on both sides. "Israel and Turkey are the two strongest and most important nations at the present time in the region," Barak said, "and even when we have disputes, and we have several disputes, we should act out of our heads, not out of our guts, on both sides, and I recommend it very strongly both to ourselves and to our Turkish neighbors." A UN report has concluded that Israel used "excessive force" in its raid but that the naval blockade of Gaza was legal. Turkey has vowed to take the case to the International Court of Justice.