Remains of a Qassam rocket is seen at a school in Ashkelon, coastal city of Israel on July 4, 2006. A Qassam rocket fired from the northern Gaza Strip landed in a school at the center of Ashkelon on Tuesday. The Izz al-Din al-Qassam, military wing of Palestinian ruling Hamas, has claimed responsibility for the rocket attack, which is believed to be the farthest one ever reached into Israeli territories. (Xinhua Photo)

Policemen survey the scene after a Qassam rocket landed in a school in Ashkelon, coastal city of Israel on July 4, 2006. (Xinhua Photo)