Two well-known labour activists in Tabriz, Shahrokh Zamani and Mohammad Jarahi, have been rearrested and transferred to Tabriz prison.
Shahrokh Zamani is facing 10 year imprisonment and Mohammad Jarahi is facing five years.
Sharif Saaed-panah and Mozafar Saleh-nia, both Executive members of the Free Union of Workers were arrested and held in custody for two weeks and released on bail on 19 January.
Sheis Amani, another Executive member of the Free Union of Workers, was arrested on 16 January while inquiring about his detained colleagues at the Sanandaj Justice Department. He has been transferred to Sanandaj central prison.
Yet another Executive member of the Free Union of Workers, Sediq Karimi, was forced to return to the prison for his participation in a May Day event in 2007. He had spent two months in jail, along with other activists; their sentences were subsequently waived by the head of the judiciary at the time but were reactivated in recent months by a special court in Sanandaj.