Iran has produced highly accurate missiles which it has not publicized, Iranian Deputy Defence Minister General Qassem Taqizadeh said on Friday, according to the semi-official Fars news agency. U.S. President Donald Trump pulled out of an international agreement on Iran’s nuclear program last year and stepped up sanctions on Tehran in order to curb Iran’s development of ballistic missiles and its support for proxies in Syria, Yemen, Lebanon and Iraq. Iran displayed what it described as a domestically built long-range, surface-to-air missile air defense system on Thursday, amid rising tensions with the United States.