WASHINGTON — President Donald Trump has abruptly fired the director of the National Security Agency, according to U.S. officials and members of Congress, but the White House and the Pentagon have provided no reasons for the move.

Senior military leaders were informed Thursday of the firing of Air Force Gen. Tim Haugh, who also oversaw the Pentagon’s Cyber Command, the officials said. They received no advance notice about the decision to remove a four-star general with a 33-year career in intelligence and cyber operations, according to the officials, who spoke on the condition of anonymity to discuss personnel decisions.

The move has triggered sharp criticism from members of Congress and demands for an immediate explanation. And it marks the latest dismissal of national security officials by Trump at a time when his Republican administration faces criticism over his failure to take any action against other key leaders’ use of an unclassified Signal messaging chat that included The Atlantic Editor-in-Chief Jeffrey Goldberg to discuss plans for a military strike.

It’s unclear who now is in charge of the NSA and the Cyber Command.

Also fired was Haugh’s civilian deputy at the NSA, Wendy Noble.

The NSA notified congressional leadership and top lawmakers on national security committees of the firing late Wednesday but did not give reasons, according to a person familiar with the situation who insisted on anonymity to discuss the matter. The person said Noble has been reassigned to the office of the defense undersecretary for intelligence.

The White House did not respond to messages seeking comment. The NSA referred questions about Haugh to the Defense Department, which had no comment Friday.

Far-right activist and commentator Laura Loomer appeared to take credit Friday in a post on X, saying she raised concerns to Trump about Haugh’s ties to Gen. Mark Milley and the Biden administration and questioned the NSA chief’s loyalty to the president. Milley served as chairman of the Joint Chiefs of Staff during Trump’s first term but has since become an outspoken critic.

“Given the fact that the NSA is arguably the most powerful intel agency in the world, we cannot allow for a Biden nominee to hold that position,” Loomer wrote. “Thank you President Trump for being receptive to the vetting materials provided to you and thank you for firing these Biden holdovers.”

Loomer, who has claimed that the Sept. 11, 2001, attacks were an “inside job,” discussed staff loyalty with Trump in an Oval Office meeting Wednesday, according to several people familiar with the situation who spoke on the condition of anonymity. A day later, Trump said he fired “some” White House National Security Council officials.

Rep. Jim Himes, ranking member of the House Intelligence Committee, sent a letter to Director of National Intelligence Tulsi Gabbard and Defense Secretary Pete Hegseth demanding to know why Haugh and Noble were fired.

“Public reporting suggests that your removal of these officials was driven by a fringe social media personality, which represents a deeply troubling breach of the norms that safeguard our national security apparatus from political pressure and conspiracy theories,” Himes, D-Conn., wrote.

Sen. Jack Reed, a Democrat from Rhode Island, said Friday that he has “long warned about the dangers of firing military officers as a political loyalty test.”

“In addition to the other military leaders and national security officials Trump has fired, he is sending a chilling message throughout the ranks: don’t give your best military advice, or you may face consequences,” Reed said in a statement.

He added that Trump “has given a priceless gift to China, Russia, Iran, and North Korea by purging competence from our national security leadership.”

Another Democrat, Sen. Mark Warner of Virginia, vice chairman of the Senate Intelligence Committee, said the U.S. is “facing unprecedented cyber threats” and asked how firing Haugh, who has served in the military for more than 30 years, makes America safer.

Haugh’s firing sets off a process in which he would automatically revert to a two-star rank unless he is moved to another three- or four-star job within 60 days.

Any new high-level job would be unlikely because that would require a nomination from Trump, who just fired him. As a result, Haugh, who was confirmed for the NSA job in a unanimous Senate vote in December 2023, would likely retire.

Trump hasn’t commented on Haugh or Noble, but on Thursday he dismissed the National Security Council firings as normal.

“Always we’re letting go of people,” Trump told reporters aboard Air Force One.

The firings come as Trump’s national security adviser, Mike Waltz, fights calls for his ouster after using the publicly available encrypted Signal app to discuss planning for a sensitive March 15 military operation targeting Houthi militants in Yemen.

Haugh had led the NSA and Cyber Command since 2023. Both departments play leading roles in the nation’s cybersecurity. The NSA also supports the military and other national security agencies by collecting and analyzing a vast amount of data and information globally.

Cyber Command is known as America’s first line of defense in cyberspace and plans offensive cyberoperations for potential use against adversaries.