Unicef said a quarter of Gaza's population has now been displaced by the ongoing violence between the Israeli military and Hamas militants.
Gaza officials say at least 1,509 Palestinians, mostly civilians, have been killed and 7,000 wounded.
Sixty-three Israeli soldiers have been killed and more than 400 hurt. Three civilians have been killed by Palestinian rockets in Israel.
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.