WASHINGTON, Oct 29 (AFP) - Russia's halting of its participation in the United Nations-brokered Black Sea Grain Initiative grain deal is weaponizing food by exacerbating humanitarian crises, U.S. Secretary of State Antony Blinken said on Saturday.

"Any act by Russia to disrupt these critical grain exports is essentially a statement that people and families around the world should pay more for food or go hungry," Blinken said in a statement.