Hizbollah missiles rain down on Haifa in northern Israel Ground Offensive Denied Updated: 13:03, Monday July 17, 2006 Israel has denied reports its troops have launched a ground offensive in Lebanon against Hizbollah militants.Wire reports initially said its soldiers were hunting out Hizbollah missile bases. But it later went back on the account and also denied reports that an Israeli F16 jet had been shot down over Lebanon.Meanwhile, Hizbollah missiles have again been falling on Haifa, in northern Israel.Israel has already warned it will knock out Lebanon's electricity grid if the rocket attacks continue. Bomb damage in Beirut Israeli...