British Foreign Secretary Jeremy Hunt said on Thursday he had had a very frank discussion with his Iranian counterpart about detained British-Iranian aid worker Nazanin Zaghari-Ratcliffe and that he would not let the matter rest.
"I had a very, very frank discussion with the Iranian foreign minister ... and I made it very clear that our policy to Iran is not settled and there will be consequences if they continue to think that this is a tool of diplomacy," he added.
Zaghari-Ratcliffe, a project manager with the Thomson Reuters Foundation, was arrested in April 2016 at a Tehran airport as she headed back to Britain with her daughter after a family visit.