The Hamas movement has threatened to kill an Israeli hostage every time Israel bombs a Palestinian home without warning.
Israel has mobilized some 300,000 reservists and imposed a total blockade of the Gaza Strip, denying the enclave’s millions of residents access to food, water and fuel.
The warning from Hamas came on Monday as the death toll from the armed group’s surprise weekend attack climbed to 900 in Israel and revenge attacks by Israeli forces on the besieged Gaza Strip killed more than 700 people and left some 3,700 others wounded.
Residential apartment blocks, hospitals, schools and a mosque have been among the sites attacked by Israeli fighter jets, artillery and drones, according to media reports and witnesses.
Hamas spokesperson Abu Ubaida issued the threat to kill Israelis from the dozens held captive by the armed group. He said an Israeli hostage would be killed for every Israeli bombing of a civilian house without warning.