DUBAI, United Arab Emirates (AP) — Iran launched a missile attack Monday on a U.S. military base in Qatar, retaliating for the American bombing of its nuclear sites. Witnesses reported seeing missiles in the skies, followed by explosions, but it wasn’t clear if there was any damage.

A Defense Department official is confirming a missile attack from Iran on a U.S. military base in Qatar but says no casualties have been reported. The official said Monday that Al Udeid Air Base was attacked by short-range and medium-range ballistic missiles. The U.S. is continuing to monitor the situation, said the official.