01:18 - Source: CNN
Marking one year since British-Iranian's arrest
CNN  — 

A British-Iranian woman who has been imprisoned in Tehran since 2016 on spying charges returned to prison on Sunday, just three days after she was temporarily released.

Nazanin Zaghari-Ratcliffe went back to prison voluntarily so that her young daughter did not see her “dragged out of bed in the middle of the night,” her husband Richard Ratcliffe said in a statement.

Zaghari-Ratcliffe’s temporary release had raised hopes that she would be released unconditionally. But her return to prison represents a setback for her supporters and the “Free Nazanin” campaign in a case that has sparked a diplomatic spat between Great Britain and Iran.

Zaghari-Ratcliffe was first detained at Tehran’s airport in April 2016 while on her way back to the UK from visiting family with her daughter Gabriella, who was then 22 months old.

The Iranian government accused her of working with organizations allegedly attempting to overthrow the regime. She was sentenced to five years in jail and her child was placed in the care of her parents.

Her employer, the Thomson Reuters Foundation, rejected the allegations. In May, Iranian media reported that she was due to face a new trial for “security-related” charges.

Richard Ratcliffe, husband of Nazanin Zaghari-Ratcliffe, holds a '#FreeNazanin' sign and candle during a vigil for her outisde the Iranian Embassy on January 16, 2017 in London, England.

Zaghari-Ratcliffe’s husband said in a statement that the day’s proceedings had been a series of mixed messages with the Prosecutors Office that ultimately leaves a young child without her mother.

“This feels a dark world. I used to pray - but these past two years I’ve lost much of my faith,” Zaghari-Ratcliffe said, according to her husband. “Who would take a child from their mother? I was so happy yesterday walking in the street seeing normal life again, but I also envied the people in the street yesterday walking holding their children’s hands. I just want a normal life.”

Zaghari-Ratcliffe’s imprisonment has caused a rift between Britain and Iran. Last December, then-British Foreign Secretary Boris Johnson visited Tehran to try to raise Zaghari-Ratcliffe’s case with the Iranian government.

CNN’s Eric Levenson contributed to this report.