The announcement comes after intensified airstrikes launched by the Israeli Air Force over the past week. "IDF troops have begun extensive ground operations throughout northern and southern Gaza as part of Operation 'Gideon's Chariots,'" the IDF announced Sunday morning.

Israel has come under mounting pressure, including from key backer the United States, to lift a total blockade it imposed on Gaza more than two months ago.

IDF Spokesperson Effie Defrin announced this evening that the new operation is intended to provide 'all necessary flexibility to bring the hostages back.'