The Israeli air force and artillery units have attacked an area in the northern Gaza Strip, amid growing tension in the region.
The Israeli shelling came hours after Palestinian militants fired a rocket into the southern Israeli town of Sderot.
There were no reports of casualties in either of the incidents.
The Islamic Jihad group had earlier vowed to avenge Sunday’s killing of its top West Bank leader by Israeli troops.
The group fired several rockets into Israel on Monday.
Israel responded with air strikes on targets in Gaza, wounding five people and damaging two buildings.
The military said it launched the air strike to prevent further attacks by Palestinian militants.
The other major Palestinian militant group, Hamas, says it is observing an eight-month-old informal ceasefire.
Palestinian chief negotiator Saeb Erekat had earlier warned that the Israeli raid in the West Bank could upset the truce.