The IRIB said on Thursday it believes that a server has been targeted by hackers.
The Mojahedine Khalgh Organization is responsible for the killing of about 12-thousand Iranian people and officials since the Islamic Revolution of 1979.
The group has carried out bombings and assassinations across Iran.
During the Iran-Iraq war in the 1980s, the MKO joined forces with former Iraqi dictator Saddam Hussein to carry out cross border attacks against Iran.
