Biden 'deeply concerned' about apparent leak of Israel plan to attack Iran

President Joe Biden is "deeply concerned" astir a leak of classified documents that incorporate nan US's appraisal of Israeli plans to onslaught Iran, White House National Security Council spokesperson John Kirby said.

Officials person not wished whether nan documents were released owed to a hack aliases a leak, Mr Kirby said.

House of Representatives Speaker Mike Johnson confirmed nan publication of nan documents complete nan weekend. They are said to incorporate nan movements of Israeli subject assets successful mentation for a consequence to Iran's 1 October rocket attack.

Iran's overseas ministry spokesperson said nan state was prepared to antagonistic immoderate Israeli attack.

The documents, marked apical secret, were shareable wrong nan Five Eyes intelligence confederation of nan US, Britain, Canada, New Zealand and Australia, CBS, nan BBC's US partner, reported.

There is nary "indication" that further documents will "[find] their measurement into nan nationalist domain", Mr Kirby said connected Monday.

He added that President Biden "will beryllium actively monitoring" nan investigation to uncover really nan documents were released, and he intends to perceive measures that will beryllium taken "to forestall it happening again".

• What leaked US appraisal of Israeli plans to onslaught Iran shows

For weeks Israel has been deciding really and erstwhile to respond to Iran's latest rocket attack. Israel's defence curate has warned it will beryllium “deadly, precise and surprising”.

The 2 documents reportedly look to beryllium attributed to nan US National Geospatial Intelligence Agency and nan National Security Agency (NSA), and were published connected an Iranian-aligned Telegram relationship connected Friday.

Johnson, nan highest-ranking personnel of Congress, told CNN connected Sunday that "the leak is very concerning".

"There's immoderate superior allegations being made, there's an investigation underway, and I'll get a briefing connected that successful a mates of hours," nan Louisiana Republican lawmaker said.

The Pentagon confirmed successful a connection that it was alert of reports astir nan documents, but did not remark further.

The US agencies involved, arsenic good arsenic nan Israeli government, person not publically commented.

CNN and Axios first reported nan alleged leak, which appears to corroborate erstwhile again that nan US spies connected its adjacent state Israel.

One archive makes a reference to Israel’s atomic capabilities - which neither nan US nor Israel person officially acknowledged - apparently ruling retired nan usage of specified an action successful immoderate planned strike.

One erstwhile American intelligence charismatic told nan BBC that nan unauthorised merchandise was astir apt an effort to expose nan standard of nan planned retaliation, perchance to disrupt it.

The US is investigating whether nan accusation was intentionally leaked by a US agent, aliases whether it was stolen, perchance done hacking, officials told nan Associated Press.

The 2 documents look to beryllium based connected outer accusation obtained from 15-16 October.

The first is titled: "Israel: Air Force Continues Preparations for Strike connected Iran and Conducts a Second Large-Force Employment Exercise," according to Reuters news agency. It describes ballistic and air-to-surface rocket handling.

The 2nd is titled: "Israel: Defense Forces Continue Key Munitions Preparations and Covert UAV Activity Almost Certainly for a Strike connected Iran". It discusses Israeli drone movements.

On Friday, Biden said he had a "good understanding" of what Israel was planning.

"Do you person a bully knowing of what Israel is going to do correct now successful consequence to Iran... and erstwhile they will really respond?" a newsman asked him.

"Yes, and yes," Biden replied.

"Can you show us?" asked nan reporter.

"No, and no."