The United States has warned that Iran's latest reported missile test could breach UN resolutions and that Washington may raise the issue with the United Nations Security Council.
U.S. State Department spokesman John Kirby made the remarks in Washington on March 8, hours after Iranian state media reported that Iran had conducted a series of tests.
Kirby said he could not confirm that the tests were carried out, but warned that Washington could take unilateral or international action in response.
White House spokesman Josh Earnest confirmed on March 8 that the missile test was "not a violation" of the international nuclear agreement that Tehran signed with six world powers in 2015.
But Earnest noted that there is "at least one specific United Nations Security Council resolution that could apply."
Earnest told reporters in Washington that the Obama administration was "still reviewing the Iranian launch to assess whether it is necessary for this matter to be raised before the United Nations Security Council."
Meanwhile, UN spokesman Stephane Dujarric said the UN was studying the Iranian state media reports and that it was up to the Security Council to determine whether there were any violations.
Dujarric said it is "important that Iran live up to its obligations."
Iran's state media reports said precision guided missiles had been fired form several sites over ranges between 300 and 2,000 kilometers.
Iran's ISNA news agency said the test by the Revolutionary Guards was aimed at showing "Iran's deterrent power and also the Islamic Republic's ability to confront any threat."
A state TV report showed a missile being fired from a fortified underground silo at night time.
The presenter said it was a medium-range Qiam-1 missile, and that the test took place in the early hours of March 8.
Brigadier General Amir Ali Hajizadeh, commander of the Revolutionary Guards' aerospace arm, said sanctions would not stop Iran developing its ballistic missiles, which it regards as a cornerstone of its conventional deterrent.
The United States in January imposed fresh sanctions on 11 companies and individuals for supplying Iran's ballistic missile program.
The move came about the same time Washington lifted many sanctions on Iran as part of the international deal to curb Tehran's nuclear program.
Iran conducted a precision-guided ballistic missile test capable of delivering a nuclear warhead violating a United Nations ban last October.
U.S. President Barack Obama said the test was a violation of Iran's "international obligations."