Iran attacked US forces in Jordan, a US source familiar with the situation told Fox News on Monday.
The source added that nearly all missiles had been intercepted by US air defenses.
Explosions were heard near the southern Jordanian city of Aqaba following launches from Iran, local media reported.
Iranian state broadcaster Press TV reported that Iran had launched missiles at US ships in the Strait of Hormuz early on Monday morning.
This is a developing story.