Files leaked to media watchdog show at least four journalists were allegedly killed by the government between 1979-2009.
RSF report coincides with the 40th anniversary of the Islamic revolution that brought Ayatollah Ruhollah Khomeini to power [Reuters TV]
Iran arrested, imprisoned or killed at least 860 journalists in the three decades after the 1979 Islamic revolution, according to documents leaked to media watchdog, Reporters Without Borders (RSF).
