I don't think it benefits his case to outline every move we make, but there are intense contacts with Turkey in various ways, says Kristersson.
His message to Turkey's President Recep Tayyip Erdogan is "very clear":
We want to get him home. It's only Turkey that can make Turkish decisions, but we stand behind the importance of journalistic freedom and that work.
He says the government is careful not to "complicate" or "worsen" anything.
The Ministry of Foreign Affairs has very close contacts. I really hope we succeed, but these are difficult matters. I think everyone understands that.
Joakim Medin was arrested at the airport in Istanbul, when he traveled there to cover ongoing and large-scale protests against the country's government. According to his defenders, he risks up to twelve years in prison in the worst case.