Israel and Iran exchange missile attacks for a third day; nuclear sites hit, death tolls rise, airspace shut, U.S. warns Tehran against retaliation.

Israel's military said early Sunday it had struck Iran's defence ministry headquarters, "nuclear weapons project" infrastructure sites and other targets, as the rival nations exchanged fire for a third day.

President Donald Trump told ABC News that "it's possible we could get involved" in the ongoing conflict between Israel and Iran. The president made the comments to ABC News' Rachel Scott. He also reiterated that the U.S. is "not at this moment involved" in the conflict.

Israel launched its offensive against Iran's nuclear and military infrastructure on Friday. Iran has retaliated to the Israeli airstrike by firing scores of ballistic missiles on Tel Aviv and Jerusalem.