History of the Mujahideen-e Khalq (MEK)

On 20 June 1981, MEK organized a peaceful demonstration in Tehran. Khomeini’s Revolutionary Guards suppressed the demonstration, resulting in "50 deaths, 200 injured, and 1000 arrested". In 1980-81, the MEK and other leftist and moderate groups rallied in favor of President Abolhassan Banisadr to resist a total takeover by the Islamic Republic Party.