With the temporary ceasefire on, Palestinians frantically scoured through the rubble with medics saying 85 bodies had been retrieved across the Gaza Strip.
The discovery of the bodies under mounds of rubble had pushed the death toll to 985 Palestinians killed in the coastal enclave since the conflict began on July 8.
On the Israeli side, 37 soldiers have been killed, along with two Israeli civilians and a Thai foreign worker.
Before the truce began, Israeli strikes killed at least 19 Palestinians overnight at a family home near Khan Younis in the southern Gaza Strip. Images showed relatives weeping as the bodies of five children were taken to a local morgue.
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Two Israeli soldiers were also killed overnight, Israel's military confirmed.
The Iron Dome defence system intercepted three rockets fired towards the southern Israeli town of Ashkelon overnight.
"We all call on parties to extend the humanitarian ceasefire," France's Foreign Minister Laurent Fabius told reporters after the meeting.
As the truce took effect, Palestinians returned to areas where heavy Israeli bombardment had taken place to look for bodies and also started to stock up food supplies.
The scene was gruesome with buildings completely pulverised, cars thrown 50 metres into the air on top of buildings and the facades of some block of flats completely ripped off.
US Secretary of State John Kerry yesterday said that he was still confident of a longer ceasefire.
The announcement of the humanitarian window came shortly after Israeli Defence Minister Moshe Ya'alon warned that ground operations in Gaza could soon be broadened "significantly".