A new declaration targeted eastern Gaza City, including several areas that had been declared evacuation zones. The United Nations said 390,000 people had been displaced in recent weeks.
A letter signed by reservists and retired officers accused the government of endangering hostages held by Hamas, highlighting a growing divide over the handling of the war.
Officials met Hamas three times, breaking with a policy against contacting a group the U.S. considers a terrorist organization. But Israeli opposition and shifting positions doomed the effort.
The strike on a home left other bodies buried under the rubble, according to the Gazan authorities. The Israeli military said it had been targeting a Hamas operative.