KUALA LUMPUR, Malaysia (AP) — Southeast Asian nations must accelerate regional economic integration, diversify their markets and stay united to tackle the fallout from global trade disruptions resulting from sweeping U.S. tariff hikes, Malaysian Foreign Minister Mohamad Hasan said Sunday. Mohamad, opening a meeting of foreign ministers from the Association of Southeast Asian Nations, also reiterated the bloc's call to warring parties in Myanmar to cease hostilities in a deadly civil war that has killed thousands and displaced millions of people since a 2021 government takeover by the military. “ASEAN nations are among those most heavily affected by the U.S.-imposed tariffs.