Behzad Nabavi, Islamic Iran Participation Front (IIPF) leader Mohsen Mirdamadi, and former president Mohammad Khatami's brother Mohammad-Reza Khatami, who was later released. Also arrested were Mostafa Tajzadeh and Mohsen Aminzadeh, whom the IRNA said were involved in orchestrating protests on 13 June. Anonymous sources said that the police stormed the headquarters of the IIPF and arrested a number of people. Iranian journalist Mashallah Shamsolvaezin claimed that presidential candidate Mir-Hossein Mousavi was put under house arrest, although officials denied this. An estimated 200 people were detained after clashes with students at Tehran University, although many were later released. Acting Police Chief Ahmad-Reza Radan stated via the state press service on the 14th that "in the interrogation of related rebels, we intend to find the link between the plotters and foreign media". A judiciary spokesman said they had not been arrested but that they were summoned, "warned not to increase tension," and later released. Intelligence minister Gholam Hossein Mohseni-Ejehei linked some arrests to terrorism supported from outside Iran, stating that "more than 20 explosive consignments were discovered". Others, he said, were "counter-revolutionary groups" who had "penetrated election headquarters" of the election candidates. On 16 June, Reuters reported that former vice-president Mohammad-Ali Abtahi and former presidential advisor Saeed Hajjarian had been arrested. Human rights lawyer Abdolfattah Soltani, who had been demanding a recount of all votes, was also arrested on the Tuesday according to Shirin Ebadi, who said that security officials had posed as clients. Over 100 students were arrested after security forces fired tear gas at protesters at Shiraz University on the same day. Reporters Without Borders reported that 5 of 11 arrested journalists were still detention as of 16 June, and that a further 10 journalists were unaccounted for and may have been arrested. On 17 June, former foreign minister and secretary-general of the Freedom Movement of Iran, Ebrahim Yazdi, was arrested while undergoing tests at Pars hospital in Tehran. He was held overnight in Evin Prison before being released and returning to hospital, where according to Human Rights Watch he remained under guard. In Tabriz, other Freedom Movement activists and eight members of the IIPF were arrested, with reports of at least 100 civic figures' arrests. The total number of arrests across Iran since the election was reported as 500. Aaron Rhodes, a spokesman for the International Campaign for Human Rights in Iran, stated that "Iranian intelligence and security forces