"If there is a good will on both sides a deal is possible within a very ambitious time scale of six months," Bildt said.
In November last year Iran signed a six-month deal to curb its nuclear programme at a meeting with the five permanent members of the UN's Security Council plus Germany. Swedish Foreign Minister Carl Bildt hopes in his visit to negotiate a more permanent agreement.
"It's not going to be easy and it requires a genuine will for compromises on both sides," Bildt said. "The benefits that are there for both sides are so obvious."
Bildt also expressed that he hopes to expand Sweden's ties with Iran quoting that it would benefit both nations and the over 100,000 Iranian nationals living in Sweden.
Bildt will stay in the country until February 6.