U.S. President Joe Biden warned that global hunger could increase because of Russia’s suspension of a U.N.-brokered deal to allow safe passage for ships carrying Ukrainian grain. “It’s really outrageous,” said Biden speaking in Wilmington, Delaware, on Saturday. “There’s no merit to what they’re doing. The U.N. negotiated that deal and that should be the end of it.” Biden spoke hours after Russia announced it would immediately halt participation in the agreement, alleging that Ukraine staged a drone attack Saturday against Russia’s Black Sea Fleet ships off the coast of occupied Crimea. Ukraine has denied the attack.