Israel has warned of severe consequences if Hamas fails to release hostages as agreed this weekend, escalating tensions and putting the fragile ceasefire at risk. Both sides accuse each other of not meeting deal terms, with possible resumption of war looming if the accord collapses.Israel has warned of severe consequences if Hamas fails to release hostages as agreed this weekend, escalating tensions and putting the fragile ceasefire at risk. Both sides accuse each other of not meeting deal terms, with possible resumption of war looming if the accord collapses.