The US military and other militaries in the Middle East have raised their alert level in response to the warnings, according to the report.
The planned attacks are aimed at distracting from the protests that have swept Iran in recent weeks.
The White House National Security Council said it was concerned about the warnings and was ready to respond.
“We will not hesitate to act in the defense of our interests and partners in the region.”NSC spokesperson
“We are concerned about the threat picture, and we remain in constant contact through military and intelligence channels with the Saudis,” said a National Security Council spokesperson, according to the Wall Street Journal. “We will not hesitate to act in the defense of our interests and partners in the region.”
Unnamed US defense officials confirmed the report to CNN and other American news outlets later in the day.
Iran blames Saudi Arabia, US, Israel for protests
Iran has blamed the US, Saudi Arabia and Israel for the ongoing protests in the country.
The IRGC launched a number of strikes against Kurdish militias in eastern Iraq shortly after the protests began, claiming that the militias were spreading unrest in Iran.
پس از اهتزاز پرچم سرخ «یالثارات الحسین» بر فراز گنبد جمکران به نشانه انتقام خون حاجقاسم، اینبار این پرچم به نشانه خونخواهی شهدای حمله تروریستی شیراز بر فراز گنبد حرم شاهچراغ به اهتزاز درآمد. pic.twitter.com/NPIVjj9Div— خبرگزاری فارس (@FarsNews_Agency) October 30, 2022
On Sunday, a red flag was raised over the dome of the Shahcheragh Shrine, where a number of Iranians were recently killed in a terrorist attack claimed by ISIS, symbolizing a demand for revenge against those who carried out the attack.