Sahar Yazdanipour, the wife of a jailed student activist, has been detained by authorities, RFE/RL's Radio Farda reports.
Yazdanipour was arrested after she went to court to ask about her husband, who is reportedly on a hunger strike.
During her interview with Radio Farda, she again called for the release of her husband, a Shiraz University student.
Student activists at the university have reported growing pressure there from the authorities, and increasingly close monitoring of their activities.
Several students have been jailed or summoned to the university's disciplinary commission in recent weeks.