IAF warplanes destroyed the offices of Hizbullah's south Lebanon commander in the southern port city of Tyre on Wednesday, security officials and witnesses. The building was empty but 12 people nearby were injured. The two explosions in the center of the city raised a giant pall of smoke over Tyre, and electricity was knocked out in some areas. The target was a seven-story building housing the office of Sheik Nabil Kaouk, the Hizbullah commander in south Lebanon. The building was heavily damaged and the top floors were pancaked on top of each other. But witnesses and doctors said it was believed to be empty.