Gaza officials said at least 388 Palestinians, many of them civilians, have been killed in the 13-day conflict. On Israel's side, five soldiers and two civilians have died.
Hostilities between the two sides escalated following the killing last month of three Jewish students that Israel blames on Hamas. Hamas neither confirmed nor denied involvement.
The apparent revenge murder of a Palestinian youth in Jerusalem, for which Israel has charged three Israelis, further fuelled tension.
Diplomatic efforts to secure a ceasefire involving, among others, Egypt, Qatar, France and the United Nations, have failed to make headway.
Hamas has rejected Egyptian efforts to end fighting, saying any deal must include an end to a blockade of the coastal area and a recommitment to a ceasefire reached after an eight-day war in Gaza in 2012.