Update 1.30pm: Donald Trump has used social media to criticise Iran for testing a ballistic missile.
The U.S. president has tweeted saying the Middle Eastern country is "on notice" and should be "thankful" for what he calls the "terrible deal" it previously got with America.
Iran has defended the latest test and says it will not bow to pressure.
Iran has been formally PUT ON NOTICE for firing a ballistic missile.Should have been thankful for the terrible deal the U.S. made with them!— Donald J. Trump (@realDonaldTrump) February 2, 2017
Iran was on its last legs and ready to collapse until the U.S. came along and gave it a life-line in the form of the Iran Deal: $150 billion— Donald J. Trump (@realDonaldTrump) February 2, 2017
Earlier: Iran has defended their ballistic missile testing after being put 'on notice' by the United States.
The supreme leader of Iran, Ali Khamenei (pictured), said that they will not bow to pressure.
This response comes after President Donald Trump's national security adviser Michael Flynn told reporters that the administration "condemns such actions by Iran that undermine security, prosperity and stability throughout and beyond the Middle East that puts American lives at risk".
He said "Iran is now feeling emboldened", criticising the Obama administration for failing "to respond adequately".
A defence official said this week that the missile test ended with a "failed" re-entry into the earth's atmosphere.
The official had no other details, including the type of missile.