According to a report from the Wall Street Journal, President Donald Trump's White House - led by national security adviser John Bolton - requested options from the Pentagon to launch an attack on Iran in September of past year.
Unnamed US officials told The Wall Street Journal that Mr Bolton's hawkish response to the September attack "rattled" the Pentagon and state department. No one was hurt by the shells, which landed in an open lot.
While it is unclear if the proposals were eventually sent to the White House or if the president knew of the plans, Bolton's request anxious many in the Pentagon and the State Department concerned with the more hawkish approach toward Tehran. What worries the Pentagon is that Iran is capable of hitting USA facilities throughout the Middle East. 'People were shocked. It was mind-boggling how cavalier they were about hitting Iran'. The Journal reported that it wasn't clear whether Trump knew about, or was provided with, the plans for potential military strikes.
While no one was wounded in the incident, it angered the US.
Pentagon officials stressed that it was not unusual for the Defense Department to draw up military plans for the White House.
The Times did acknowledge a spokesman for the National Security Council, Garrett Marquis, pointing out that Bolton's job entailed the kind of actions Bolton took, saying, "The N.S.C. coordinates policy and provides the president with options to anticipate and respond to a variety of threats".
The source said while no one had been injured in the attack, the White House was angered by the military attack on Iran in September a year ago.
State Department Secretary Mike Pompeo did not comment on the story when asked about it by reporters and a State Department spokeswoman declined to comment.
The statement added: "The United States will hold the regime in Tehran accountable for any attack that results in injury to our personnel or damage to United States Government facilities". He penned a 2015 New York Times opinion piece prior to his current role titled "To stop Iran's bomb, bomb Iran".