In March this year, Iran's Supreme Court upheld the death penalty against Habib Chaab, who had both Swedish and Iranian citizenship. The crime he has been convicted of is fighting against the Islamic regime, a religious and serious crime that is often punishable by death in the country.
"One in a series of heinous crimes"
Morgan Johansson (S) writes on Twitter that the news of the execution is terrible.
"This is yet another in a series of heinous crimes that the Iranian regime continues to commit. Our thoughts are with Chaab's relatives and friends."
Märta Stenevi (MP) also expresses her dismay over the execution.
Stenevi also expresses concern for the Swedish-Iranian researcher Ahmedreza Djalali, who was accused of espionage by Iran and sentenced to death in 2017.
Foreign ministers condemn the execution
Pekka Haavisto, Minister for Foreign Affairs of Finland, comments on the execution on the Twitter account of the Ministry for Foreign Affairs of Finland.
"I am appalled that the Iranian government has carried out a death sentence. These executions must stop immediately. Finland's position is clear, we are always against the death penalty."
Norwegian Foreign Minister Anniken Huitfeldt also commented from Norway's Ministry of Foreign Affairs on Twitter.
Sweden's Foreign Minister Tobias Billström (M) wrote earlier on Saturday in an email to SVT Nyheter that he reacted with dismay.
"The death penalty is an inhuman and irreversible punishment and Sweden, together with the rest of the EU, condemns its application in all circumstances."
Tobias Billström also wrote that the Swedish government, since Habib Chaab was sentenced to death, has appealed to Iran that the death penalty should not be carried out.