Israel is preventing international journalists from entering the coastal strip.
Hamas fired more rockets at Israel on Saturday, a day after launching more than 30 of the missiles from Gaza, the Israeli military said. Two Israelis were injured by rockets in the Israeli town of Ashkelon.
Palestinian Authority President Mahmoud Abbas urged all sides on Saturday to accept an Egyptian-brokered truce, after meeting Egyptian President Hosni Mubarak in Cairo.
But Mr Abbas - who heads the secular Fatah movement, bitter rivals of Hamas - does not control Gaza, and analysts say he will have little impact on the course of the conflict.
"If any party does not accept it [the truce], regrettably it will be the one bearing the responsibility, and if Israel doesn't want to accept, it will take the responsibility of perpetuating a waterfall of blood," Mr Abbas was quoted as saying by AP news agency.
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