The Israeli army on Monday showed the inside of a sophisticated tunnel passing deep underground from Lebanon into northern Israel, saying it was intended for use by Lebanese Hezbollah militants. The tunnel was rigged with electrical wiring, fuse boxes and communications equipment. An army spokesman said it began almost a kilometre (mile) away inside Lebanon and reached depths of some 80 meters (265 feet) - about the height of a 22-storey building - as it crossed into Israel, near the town of Zarit.