The Palestinian death toll from the two-week Israeli offensive has risen to 508, a Gaza health ministry official has said.
Ashraf al-Kidra said rescue workers were searching a family home that was "flattened" by Israeli air strikes overnight.
At least 20 people were killed at the site near Khan Younis, where two people were pulled alive from the rubble, al-Kidra added.
Israel said 18 of its soldiers have also died along with two Israeli civilians.
In between the bandages, I could see the soreness of Randa’s skin. Her eyes stare out at a world which has been brutal to her.
An Israeli student has started an online campaign in an attempt to encourage respect between Jews and Arabs.
A BBC Arabic reporter was set upon by an angry Israeli bystander in the middle of a live broadcast on the situation in Gaza.