Israelis' shock at the sight of three emaciated hostages released Saturday has added pressure on Prime Minister Benjamin Netanyahu to extend the truce.

The Israeli military has withdrawn from an area of Gaza known as the Netzarim corridor that bisects the enclave, Hamas said on Sunday, a move that was expected under the ceasefire agreement between Israel and the Palestinian militant group.

Israeli troops have withdrawn from the Netzarim Corridor - a military zone cutting off the north of the Gaza Strip from the south. Hundreds of Palestinians in cars and on carts laden with mattresses and other goods began returning to northern Gaza following the pull-out - often to scenes of utter destruction.