A U.S. Navy warship in the northern Red Sea on Thursday shot down three cruise missiles and several drones launched from Yemen that the Pentagon said might have been headed toward Israel. "We cannot say for certain what these missiles and drones were targeting, but they were launched from Yemen heading north along the Red Sea, potentially towards targets in Israel," Brig. Gen. Patrick Ryder, the Pentagon spokesman, told reporters. The missiles and drones were launched by pro-Iranian Houthi rebels in Yemen amid a flurry of drone attacks against American troops in Iraq and Syria over the past three days, General Ryder said. The incidents underscored the risks that the conflict between Israel and the Palestinian group Hamas could spiral into a wider war.