Three U.S. Secret Service officials were placed on administrative leave on Tuesday pending an internal investigation into potential misconduct.

The agency’s Office of Professional Responsibility was just beginning its review on Tuesday and did not offer details about what the three officials were being investigated for.

The Secret Service public information office noted that the three officials were not working in law enforcement roles at the agency.

The Secret Service has faced increased scrutiny under President Donald Trump’s administration in the wake of three separate assassination attempts against him.

The first attempt, in Butler, Pennsylvania, launched a series of congressional hearings with leaders at the Secret Service.

More recently, the Secret Service said on Tuesday that it was aware of a threat from Iran against the president’s youngest son, Barron Trump.

“The U.S. Secret Service is aware of the video and investigates anything that can be perceived as a threat toward our protectees,” Nate Herring, a Secret Service spokesperson, told Fox News Digital.

“Out of concern for operational security, we do not discuss matters of protective intelligence,” Herring added.

The video depicts locations associated with the younger Trump’s whereabouts. It ends with a suggested $10 million reward for his location.

Iranian state media has aired content on multiple occasions threatening Trump and his family following the assassination of Iran’s Ayatollah Ali Khamenei, which came at the start of the war between the United States and Iran, as well as the U.S. airstrike that killed Iranian General Qasem Soleimani in 2020.

“I don’t think it’s any secret, it’s been in the media, that Iran has publicly said they want to kill President Trump,” Deputy Director of the U.S. Secret Service Matt Quinn told reporters at an event last month.

The video came amid threats from the Trump administration to nations that fail to sever their economic ties with Tehran and an ongoing naval blockade of the Strait of Hormuz.

In July, Trump secretly switched planes from Air Force One to another aircraft in Turkey via a catering truck due to a credible Iranian surface-to-air missile threat.