An Israeli airstrike killed 20 people in central Gaza, mostly women and children, and fighting raged across the north on Sunday as Israel's leaders aired divisions over who should govern Gaza after the war, now in its eighth month.

Prime Minister Benjamin Netanyahu has faced criticism from his own War Cabinet, with his main political rival, Benny Gantz, threatening to leave the government if a plan is not formulated by June 8 that includes an international administration for postwar Gaza.