Iranian authorities have restricted British-Iranian aid worker Nazanin Zaghari-Ratcliffe’s contacts with her daughter to once a month and banned her from calling her husband, the BBC reported on Tuesday. “Richard Ratcliffe said new rules mean she cannot make international calls to him in London - and can only see their five-year-old daughter once a month,” the BBC said on its website. Britain’s Guardian newspaper said Zaghari-Ratcliffe could previously see her daughter, who lives with her grandparents in Iran, every few days in prison. There was no immediate Iranian report or comment on the case. Zaghari-Ratcliffe, a project manager with the Thomson Reuters Foundation, was arrested in 2016 at a Tehran airport as she headed back to Britain with her daughter after a family visit, and was subsequently sentenced to five years in jail after being convicted of plotting to overthrow Iran’s clerical establishment. Her family and a charity organization defending her, which operates independently of Thomson Reuters and Reuters News, deny the charge. Ratcliffe said his wife was returned to prison on Saturday after being discharged from hospital, following a hunger strike, according to the BBC.