Marziyeh Afkham denounced the attack in the central Yemeni city of Ibb and expressed sympathy with the families of the victims.
The Iranian spokesman called for cooperation among all Yemeni parties and factions to implement the peace agreement in the country and said the people of Yemen will uproot terrorism.
Over 30 people were killed and dozens of others wounded in an explosion targeting the Shias in Ibb on Wednesday.
The attack took place when an assailant blew his explosives in a cultural center, where a group of Shiite Houthi movement’s Ansarullah fighters were preparing to celebrate the birth anniversary of Islam’s Prophet Muhammad (PBUH).
Over the past months, al-Qaeda militants have frequently carried out attacks on Yemen’s security forces. The militants have also been engaged in battle with the Shiite Ansarullah fighters.