CBS story:
The U.S. is on standby for further action by Iran, and from within the region via its proxies, a U.S. official told CBS News.
The U.S. is positioned to be able to shoot down incoming drones from Iran via assets in Iraq and Syria, three U.S. officials told CBS News. The U.S. also has fighter jets that are now on standby.
https://www.cbsnews.com/news/iran-launches-drone-attack-toward-israel-idf-says/