US Treasury Secretary Scott Bessent recently moved out of his home and onto a military base after Iranian threats against his life, The New York Times reported on Tuesday, citing sources with knowledge of the matter.
Iran has ramped up efforts to target US personnel, and lethal plots by Tehran against American citizens have reached "advanced stages," a senior intelligence official in the Trump administration warned in a memo seen by Reuters late last month.
The newspaper reported that the severity of the threats to Bessent was not immediately clear.
Iran has previously denied plotting to attack officials and people on US soil.
The newspaper reported that US officials have noted that Iran's ability to carry out large-scale attacks in the US and other territories overseas is limited.
The US Treasury Department did not immediately respond to a request for comment.
US pressuring Tehran economically over course of war
Bessent has been the face of Washington's economic pressure campaign against Tehran during the course of the US-Israeli war on Iran that began on February 28.
American and Israeli attacks have killed top Iranian officials, including late Supreme Leader Ayatollah Ali Khamenei.