The advance and a new evacuation order came not long after Palestinian health authorities said dozens of people, including children, were killed in strikes on a school turned shelter. Israel said it had targeted militants.

Israeli Defense Minister Israel Katz announced Wednesday a major expansion of the military’s operation in Gaza involving the seizure of large areas of land that would be “incorporated into Israel’s security zones.

Israel announced a major expansion of military operations in Gaza on Wednesday, saying large areas of the enclave would be seized and added to its security zones, accompanied by large-scale evacuations of the population.