Israeli rescue workers evacuate a "victim" during a simulated attack, part of a two-day nationwide drill, in Netanya, north of Tel Aviv, March 21, 2007. Air raid sirens sounded across Israel on Tuesday as part of a civil defence exercise that included simulated chemical missile strikes on major cities. Missile strikes on Tel Aviv's main power station and chemical warfare attacks on an industrial area and a cultural centre in the city were among the planned scenarios during the two-day exercise, the army said.