Palestinian militants in Gaza have fired dozens of rockets at Israel after its air strikes killed top commanders and felled another tower block there.
The escalation, which began on Monday, has triggered street violence in Israel between Jews and Israeli Arabs.
In two incidents, a Jewish man in Acre was attacked by Arab men,.
In another incident, a Jewish mob pulled a Palestinian out of his car and beat him up in Bat Yam.
At least 67 people in Gaza and seven people in Israel have been killed.
The fighting erupted after weeks of rising Israeli-Palestinian tension in East Jerusalem.
They climaxed in clashes at a holy site revered by Muslims and Jews.