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.

Israel blocked aid trucks into Gaza as a cease-fire standoff has escalated, with Hamas calling on other mediators to intervene.