US House Speaker Mike Johnson expressed deep concern over the leak of classified documents related to Israel's plans to retaliate for Iran's massive ballistic missile attack three weeks ago.

“The leak is very concerning. There’s some serious allegations being made there, an investigation underway, and I’ll get a briefing on that in a couple of hours,” Johnson told CNN’s 'State of the Union program on Sunday. “We’re following it closely.”

“I talked to my friend … Prime Minister Netanyahu, yesterday to encourage him,” he added. ” I think that the United States needs to stand unequivocally by our ally there… we’re on a precipice… of a new era of security and freedom for Israel. And I think we’re very close.”

The US is investigating the leak of Israel's highly-classified plans for retaliation against Iran, CNN reported on Saturday, quoting three people familiar with the matter.... Read More: Arutz-7