This story is developing...

UPDATE:

The AP in follow up issued higher figures: "Iran fired six ballistic missiles and 29 drones at Saudi Arabia's Prince Sultan air base in a Friday attack that wounded at least 15 troops, including five seriously, according to the sources who were not authorized to comment publicly and spoke on the condition of anonymity. U.S. officials initially reported that at least 10 U.S. troops were injured, including two seriously wounded," wrote Zero Hedge.

UPDATE:

Iranian strikes at Saudi Arabia’s Prince Sultan Air Base damaged a U.S. E-3 Sentry AWACS aircraft along with multiple refueling aircraft.

Ten U.S. service members were injured in an Iranian missile and drone attack on Prince Sultan Air Base in Saudi Arabia. 

Two were very seriously injured and eight seriously injured, reported CBS.

Iranian missile & drone strikes hit Prince Sultan Air Base today, damaging several U.S. refueling aircraft.

It’s the second strike on the base, reported WSJ.

Iranian satellite images claim to show 3 x U.S. KC-135 refueling aircraft destroyed or damaged at Prince Sultan Air Base in Saudi Arabia.

The Wall Street Journal cited U.S. and Saudi officials confirming the attack, which also reportedly injured several U.S. service members, though none of the injuries were life-threatening.