President Joe Biden is "deeply concerned" about a leak of classified documents that contain the US's assessment of Israeli plans to attack Iran, White House National Security Council spokesman John Kirby said. Officials have not determined whether the documents were released due to a hack or a leak, Mr Kirby said.

Fox News senior strategic analyst Gen. Jack Keane (Ret.) on the latest from the war in Israel as fighting continues against Hezbollah as the U.S. probes an intel leak of Israel attack preparations.

US investigators are trying to find out how the highly classified intelligence documents were leaked online.

American officials are trying to determine the source of the leak, which describes military drills and weapons placement, and how damaging it might be.

Documents, published online to messaging app Telegram, were marked "top secret," but it is not yet clear if they are authentic.

Following the massive missile attack on Israel by Iran, Israel vowed to retaliate, but how will Israel respond and what will they target?