CIA Torture Report

U.S. Government Is ‘Symbol of Tyranny’: Tweet Linked to Iran Leader

CIA fights back on torture report 2:37

A Twitter account associated with Iran's Supreme Leader Ayatollah Ali Khamenei has branded the U.S. government a "symbol of tyranny against humanity." The posts also highlighted the death of black teen Michael Brown at the hands of a white police officer in Ferguson, Missouri.

Last month, tweets posted on the same account said that "arrogants" had failed to bring the Islamic republic "to its knees" during nuclear negotiations.