President Trump has indicated that the U.S. was given prior warning of the Iranian strike. U.S. and Qatari authorities said the missiles were intercepted.

Qatar has some of the world's most advanced air defenses and said they "successfully thwarted" an Iranian missile attack.

Iran retaliated against the U.S. on Monday, launching missiles at a U.S. base in Qatar, according to a U.S. defense official and a statement from the Qatar foreign ministry. The missiles targeted Al Udeid Air Base outside Doha and were intercepted by air defenses before they could strike the base,