Candidate quits Iran presidential race June 10, 2013 -- Updated 1052 GMT (1852 HKT) (CNN) -- One of the eight candidates in Iran's upcoming presidential election has dropped out of the race, Iranian media outlets reported Monday. He is Gholam-Ali Haddad-Adel, 68, a conservative and former speaker of the parliament. It was not immediately known why he made the move. The election is scheduled to take place Friday. READ: Rouhani: The man to revive Iran's reformist movement? READ: Is Iran's next president the face of its nuclear program? Iran election 2013 June 10, 2013 -- Updated 1300 GMT (2100 HKT) Who are the eight candidates and why were their campaigns approved ahead of more than 600 other hopefuls? May 22, 2013 -- Updated 2154 GMT (0554 HKT) Christiane Amanpour explains what's at stake in Iran's June 14 presidential election. June 7, 2013 -- Updated 1120 GMT (1920 HKT) Centrist candidate Hassan Rouhani has suddenly injected fresh intrigue into the elections. May 28, 2013 -- Updated 1624 GMT (0024 HKT) In 2009, the regime lost the people; it now appears to be divesting itself of its traditional elite, writes Ali Ansari. As presidential elections loom, how significant are apparent restrictions on Iran's internet? May 29, 2013 -- Updated 1540 GMT (2340 HKT) Hooshang Amirahmadi went to Iran in mid-April to campaign as a presidential candidate. On May 11 he withdrew his candidacy. He explains why. May 28, 2013 -- Updated 1623 GMT (0023 HKT) Mahmoud Ahmadinejad will challenge the disqualification of his top aide from the presidential election, Iran's state-run Press TV reports. May 28, 2013 -- Updated 1625 GMT (0025 HKT) The motivation for Hooshang Amirahmadi's quixotic campaign is to re-establish trust between the United States and Iran. May 28, 2013 -- Updated 1626 GMT (0026 HKT) Hundreds of candidates register for the election, with hopefuls ranging from friends to foes of Ahmadinejad.