Persons involved in the murder of a nuclear scientist Masood Ali Mohammadi were arrested, reported Iranian news agency Fars News.
The report did not mention the names of those arrested and their number.
Iranian physicist Masoud Ali-Mohammadi met his end in a car bomb explosion in Tehran in January 2010 which claimed his life as well.
Similarly twin explosion in Tehran claimed life of an Iranian nuclear scientist, Shahriari, and left another one Fereidoun Abbasi injured.
Iranian authorithies concluded that Masoud Ali-Mohammadi was murdered by Israeli and American intelligence services.