Tehran has reportedly freed Iranian journalist Yeganeh Salehi on bail, but her husband -- "Washington Post" correspondent Jason Rezaian -- remains in detention.
Salehi works for "The National," an English-language newspaper based in the United Arab Emirates.
She was held for more than two months without charge.
"The National" cited Ali Rezaian, Jason Rezaian's brother, as saying that Salehi was released last week and that both reporters were "physically healthy."
Jason Rezaian has dual U.S. and Iranian citizenship.
Salehi and Rezaian were detained at their home in Tehran on July 22.
Iranian authorities have refused to provide details on the case.
The New York-based Committee to Protect Journalists says Iran has about 35 imprisoned journalists and is in the top three countries for jailing reporters.