On January 29, 2017, Iran test-fired a “Khorramshahr” medium range ballistic missile from a test site near Semnan, 140 miles east of Tehran. Reports claim that the missile flew about 965 km before apparently exploding during reentry. The Khorramshahr is a new, indigenously made Iranian missile and its development was announced by Defense Minister Hossein Dehghan in September 2016. Little is known, however, about its specifications.  This test represents a possible violation of UN Resolution 2231, the result of the Iran nuclear deal that calls on the Islamic Republic not to conduct tests of missiles designed to carry nuclear warheads for eight years, starting on July 20, 2015.