Israel has suspended the delivery of humanitarian aid to the Gaza Strip, citing alleged attacks by Hamas as a violation of the recent ceasefire. The halt comes amid renewed Israeli airstrikes and tank fire across Gaza, which local authorities say killed at least 21 people, including civilians and children. The escalation follows a period of relative calm after a ceasefire agreement, with both sides accusing each other of breaches. The situation has heightened fears of a collapse in the truce, while negotiations continue over the return of hostages and the future governance of Gaza. The humanitarian crisis remains severe, with famine conditions reported and access to aid now further restricted.