The authorities in Iran have closed down the country's biggest-circulation reformist newspaper Etemaad accusing it of breaching media laws.<br/><br/>They also suspended publication of a weekly reformist paper whose Managing Director is the son of one of Iran's opposition leaders, Mehdi Karroubi. <br/><br/>Hossein Karroubi told newsmen that the paper Iran Dokht was targeted due to his father's political activities. <br/><br/>Last week Mehdi Karroubi was beaten up by Iranian security forces at a rally. <br/><br/>Both Mehdi Karroubi and the other main opposition leader Mir Hossein Mousavi were taking part in a rally on 11 February, marking the anniversary of the Islamic revolution when they were reportedly attacked by the government's Basij militia. <br/>