Iran-linked hackers have threatened to disclose more emails stolen from US President Donald Trump's circle, after distributing a prior batch to the media ahead of the 2024 US election, EDnews reports, citing Reuters.

The hackers, who go by the pseudonym Robert, said they had roughly 100 gigabytes of emails from the accounts of White House Chief of Staff Susie Wiles, Trump lawyer Lindsey Halligan, Trump adviser Roger Stone and porn star-turned-Trump antagonist Stormy Daniels.

Robert raised the possibility of selling the material but otherwise did not provide details of their plans. The hackers did not describe the content of the emails.

US Attorney General Pam Bondi described the intrusion as "an unconscionable cyber-attack."

The White House and the FBI responded with a statement from FBI Director Kash Patel, who said: "Anyone associated with any kind of breach of national security will be fully investigated and prosecuted to the fullest extent of the law."

"This so-called cyber 'attack' is nothing more than digital propaganda, and the targets are no coincidence. This is a calculated smear campaign meant to damage President Trump and discredit honorable public servants who serve our country with distinction," cyberdefense agency CISA said in a post on X.