The U.S. is investigating a possible ballistic missile test by Iran in late November, an act that, if proved true, would be in violation of a U.N. Security Council resolution.
"The U.S. is conducting a serious review of the reported incident," U.S. Ambassador to the U.N. Samantha Power said Tuesday, according to Reuters.
If reports that Iran launched a medium-range ballistic missile on Nov. 21 are confirmed, she added, the U.S. would seek appropriate action from the 15-member Security Council.
A resolution by the Council in 2010 banned Iran from testing missiles until a nuclear deal between the Middle Eastern nation and world powers — reached on July 14 this year — is implemented.