An ally of Iranian opposition leader Mirhossein Mousavi has been detained, reformist websites said, in the latest move signalling increased pressure by the authorities on pro-reform foes of President Mahmoud Ahmadinejad.
Mousavi's website quoted the wife of Alireza Hosseini Beheshti, who heads an opposition committee looking into alleged abuse of imprisoned protesters after the disputed June election, as saying he was arrested in his home on Tuesday.
The wife, who was not named, said five security agents raided the place and searched "everywhere, even the bedroom" for several hours and seized personal belongings and documents before taking Beheshti away.
The family was treated in an "impolite way," she added. He is the son of Ayatollah Mohammad Hosseini Beheshti, who was head of Iran's supreme court for about a year after its 1979 Islamic revolution and killed in a 1981 bombing attack. There was no immediate comment from officials on the report. Another reformist website, mowjcamp.com, also said Beheshti had been arrested.