The two have been named as Craig and Lindsay Foreman, and their family said on Saturday they were engaging with relevant authorities to ensure the pair's well-being and safe return home.
Iran has continued to warn that a "strong and complex" attack is forthcoming and that it will not be limited to a missile attack.
Iran boosts naval power with a new aircraft carrier, triggering Israeli security concerns over the fate of the Middle East.
Analysts said this might be a sign that Iran is facing supply chain issues after dramatically ramping up production following October 7.
This is the third underground missile base unveiled by the IRGC in less than a month.
Trump’s approach suggests that he believes maximum pressure can force adversaries to negotiate on terms favorable to the United States. For Israel, the stakes could not be higher.
In the government’s statement, it was said that the resolution’s section regarding the IRGC was “completely unjustified.”
This is the first time an Iranian official has confirmed the purchase of Su-35 jets.
"The threat to anyone involved in President Donald Trump's strike (on) Soleimani is persistent. It's real. Iran is committed to vengeance against all of these people," US Senator Tom Cotton said.
The EU must take decisive action to counter the growing threat posed by Iran and the IRGC.