Prime Minister Benjamin Netanyahu said Sunday that Israel would not allow any further humanitarian aid into Gaza.

Israel said it accepted a Trump administration proposal to extend the deal but Hamas rejected it.

Hamas accused Israel of trying to derail the cease-fire agreement hours after its first phase ended. It called the decision to cut off aid “cheap extortion, a war crime and a blatant attack” on the truce, which took hold in January after more than a year of negotiations. Both sides stopped short of saying the cease-fire had ended.