Under the withering attacks, 165 people were killed in the past 24 hours, Gazan officials said, while Israel said it had destroyed the apartment of a Hamas leader.
Amid global pressure to reach a cease-fire and fears of a widening regional war, Israel says it will continue to fight in Gaza until Hamas is defeated.
The State Department says the monthslong blockade has damaged U.S. national security. Several Republican senators have objected to advancing the slate of nominees.