Israel continued to bombard Gaza with airstrikes overnight and this morning, and the military said it had attacked 900 targets so far.
Some was seen rising from buildings across Gaza, and militants responded with artillery fire.
Israeli tanks have been gathering around the southern border of Hamas. The number of Palestinians killed in Gaza has now reached 85, officials said.
It's been an emotionally exhausting day in Israel and Gaza as hopes for peace were raised then dashed then raised then dashed again.
In the court of international opinion, this is how Israel wins a battle and still manages to lose the war.
Until the Israelis and the Palestinians find a way of resolving the underlining conflict this will not be more than a pause.