The ministry declined to give details of the case but Foreign Minister Margot Wallstroem thanked yesterday the Palestinians and Jordan for helping secure the men's release.
"A special thanks to Palestine and president (Mahmud) Abbas personally who engaged in a decisive way, as well as to the Jordanian authorities," she said in a statement to news agency TT.
The Palestinian ambassador to Sweden Hala Husni Fariz said the men, who were freed on Friday, had been kidnapped by al Qaeda's Syrian affiliate, the Al-Nusra Front.
She said the men had been held in an area close to the Jordanian border.