A former chancellor of Tehran University has been arrested, RFE/RL's Radio Farda reports.
Mohammad Maleki, 76, was reportedly recovering from a serious illness at his home when he was detained. About 80 of his books and personal documents were also confiscated.
The reason for his arrest and the charges against him are unclear.
Maleki's wife told Radio Farda that one of the security officers who arrested Maleki said he is being imprisoned because of his alleged ties to the People's Mujahedin Organization of Iran (also known as the Mujahedin-e Khalq Organization
, or MKO).
Maleki, a national religious activist, was appointed chancellor of Tehran University after the 1979 Islamic Revolution. In recent years he has been arrested several times and jailed. He was also jailed when the Shah of Iran was in power.