Israel conducted further air strikes on Gaza early on Tuesday. Its army said dozens of rockets were fired into its territory overnight.
At least 212 people, including almost 100 women and children, have been killed in Gaza, according to its health ministry. In Israel 10 people, including two children, have been killed, its medical service says.
On Tuesday Israel said at least 150 militants were among those killed in Gaza. Hamas, the Palestinian militant group that runs the territory, does not give casualty figures for fighters.
World leaders and humanitarian organisations have called for measures to prevent the deaths of residents and the chaos wrought by the destruction of buildings and infrastructure.