TEHRAN, Young Journalists Club (YJC) - "We consider that to be continued ballistic missile development," State Department spokeswoman Heather Nauert told reporters on Thursday. "We consider this to be provocative action."
On Thursday, Iran launched its domestically-manufactured Simorgh carrier, whose mission is to put Iranian satellites into the orbit.
According to Tasnim News Agency, the launch was carried out from the Imam Khomeini Space Center. Simorgh, named after a bird in Iranian mythology, is capable of placing a satellite weighing up to 250 kilograms in an orbit of 500 kilometers.
The State Department spokeswoman suggested that the launch could be a "violation of UN Security Council resolutions."
The United States claims that Iran's missile tests and rocket launches violate UN Resolution 2231, which was adopted in July 2015 to endorse the nuclear agreement, Presstv reported.
Resolution 2231 calls on Iran "not to undertake any activity related to ballistic missiles designed to be capable of delivering nuclear weapons, including launches using such ballistic missile technology."
Tehran insists its missile tests and rocket launches do not breach any UN resolution because they are solely for defense purposes and not designed to carry nuclear warheads.
Since his inauguration on January 20, US President Donald Trump has adopted a hostile policy towards Iran.
He has repeatedly vowed to cancel the nuclear agreement between Iran and the P5+1 group of countries, including the US, and his administration has imposed new sanctions on multiple Iranian individuals and entities.