At least one Palestinian militant has been killed in an attack by Israeli helicopter gunships in southern Gaza, Palestinian security officials said.
Missiles were fired at a car near the town of Khan Younis, they said.
The dead man was identified as Nidal Salamah and described as being linked to the Popular Front for the Liberation of Palestine.
At least seven other people were reported wounded in the strike.
The driver of a donkey cart travelling behind the vehicle was seriously injured.
An Israeli army spokeswoman had no immediate comment.
Palestinians say such strikes amount to extra-judicial assassinations.
Israel believes they are necessary to stop militant groups from sending out suicide bombers from the Palestinian territories into Israel.
Witnesses said helicopter gunships continued to hover over the area after the attack.
The air strike in Gaza followed another attack in the West Bank town of Bethlehem, when two militants of the Al-Aqsa Martyrs Brigades were killed by Israeli tank fire, Palestinian officials say.