Friday marks the seventh day of fighting in and around the Gaza Strip, in a confrontation that shows no sign of abating.
With Israeli forces massed on the edge of Gaza, Israel said it carried out 20 air strikes in the early hours, including targeting a mosque it said was being used to store weapons.
In Gaza, flames still burned in the ruins of the home of senior Hamas leader Nizar Rayan, who was killed along with members of his family in an air strike on Thursday.
During the funeral for the Rayan family, Israeli jets flew low over the crowds which had gathered in Jabaliya refugee camp.
Hamas has called for a day of demonstrations in protest at the violence, and Palestinian militants have continued to launch rocket and mortar attacks on southern Israel.
A building in the port city of Ashkelon was among those hit, and two people were wounded.
Israel allowed foreign nationals to leave Gaza, prompting fears that a ground assault is imminent.
The call for protests on a "Day of Wrath" was answered by Palestinians across the West Bank who demonstrated in support of Gaza.
As daylight faded on Friday, Israeli jets launched further raids near the border, the smoke drifting over towards Israel.