Among the options under consideration are banning U.S. companies from doing business with Cuban enterprises tied to the military.

The EU alleged China, which makes more than half the world's steel, has flooded global markets in violation of international trade agreements.

Until now there had been no confirmation that the Philippines had sought U.S. assistance in the battle for Marawi City.

May scheduled an early weekend meeting of her governing circle in an apparent bid to reassert authority and project stability.