Iran will unveil an upgrade of its Emad ballistic missiles this year, the defense minister was quoted as saying, advancing a program that has drawn criticism from the United Nations and sanctions from the United States.

The Islamic Republic would also start taking delivery of an advanced Russian S-300 surface-to-air missile defense system in the next two months, Hossein Dehghan added – a system that was blocked before a landmark nuclear deal with world powers.

Tehran agreed the deal on curbing its nuclear work in July last year and international sanctions were lifted in January. But tensions with Washington have remained high as Tehran continues to develop its military capabilities. […]