An IAF airstrike killed two Palestinian terrorists in the northern Gaza Strip Sunday afternoon, witnesses and hospital officials said. They said a missile fired by an Israeli aircraft hit a car, killing the two, from the Al Aksa Martyrs Brigades, a violent offshoot of Palestinian Authority Chairman Mahmoud Abbas's Fatah movement. The military said its aircraft hit a rocket launching site. Around the same time, two rockets fired from northern Gaza exploded in the town of Sderot just across the fence, wounding an Israeli and damaging a sports center and a house. Islamic Jihad claimed responsibility.