The administration of U.S. President Donald Trump decided to reduce the amount of classified information shared with Congress, following media leaks about the results of U.S. strikes on Iran, which sparked uproar and outrage within the United States.

CNN quoted a senior White House official as saying the administration believes that the initial report from the Defense Intelligence Agency was leaked after being posted to a secure system for sharing classified data with Congress on Monday evening.

The official added, “As a result, the administration will share less information on this system,” while confirming that an investigation had been opened to identify the source of the leak.

The same official revealed that Defense Secretary Pete Hegseth and Secretary of State Marco Rubio, along with Chairman of the Joint Chiefs Dan Keane and CIA Director John Ratcliffe, would brief the Senate on the Iran issue on Thursday.

American media outlets had earlier reported that an initial intelligence assessment indicated the recent U.S. strikes failed to destroy the core components of Iran’s nuclear program, including its stockpile of enriched uranium and centrifuges.

These reports drew reactions from top U.S. officials, including President Trump, who denied the claims and accused major media outlets—such as CNN and The New York Times—of spreading false information.