Israeli helicopters and ground troops attacked a number of Palestinian Authority positions in the Gaza Strip Sunday. The raid came in response to mortar attacks on Jewish settlements in the territory.
Palestinian security officials say the Israeli defense forces fired at least 20 missiles at Palestinian targets, injuring at least three people.
A Palestinian general intelligence post in Khan Younis, in the southern Gaza Strip, and a Palestinian maritime police station in the north of the territory were among the targets.
Among the victims was a Palestinian boy who was critically injured when a wall collapsed on him.
Israel's actions followed continued mortar fire on Jewish settlements in the Gaza Strip on Saturday, one of which killed an Israeli reserve soldier and injured two others.
Palestinian officials claim that what they describe as "the new Israeli aggression" is pushing the region "to explode."
Palestinian officials also accuse Israel of attempting to sabotage the mission of new U.S. Mideast envoy, Anthony Zinni, who is due to arrive in the region on Monday.
Mr. Zinni will attempt to broker a new cease-fire agreement to end more than 12 months of violence that has left nearly 1,000 people dead.
He is expected to put pressure on Israeli Prime Minister Ariel Sharon to drop his demand for seven days of complete quiet before steps can be introduced to restart peace talks.
Earlier this year the head of the U.S. Central Intelligence Agency, George Tenet, negotiated a truce, but it failed to prevent the sides from continuing their bitter confrontation.