Black smoke is seen over the Northern Gaza Strip town of Beit Lahiya (foreground) in front of the separations wall, July 9, 2006, during Israeli shelling while Israel's Askelon power plant is seen in the background. Israel launched air strikes against Palestinian targets across the Gaza Strip on Sunday and said it would continue an open-ended offensive after rebuffing a ceasefire proposed by Prime Minister Ismail Haniyeh of Hamas. REUTERS/Yannis Behrakis (ISRAEL)