Iran vows retaliation after US sinks its ship in Indian Ocean, says 'This will not go unanswered'

Iran has vowed retaliation after 104 sailors were killed after the US torpedoed the IRIS Dena in the Indian Ocean. Iran's Army chief Amir Hatami said the killing "will not go unanswered", adding that the sailors were attacked despite not being involved in any direct battle. He further said, "The crew of the Dena destroyer had completed a peaceful mission."