Some terrorists are linked with the Pakistani officials, on whose territory trainings are organized, IRNA news agency quotes Iranian Deputy Interior Minister Ali Abdullahi as saying.
According to him, the Pakistani officials provide terrorists with travel documents (passports), via which they come to Iran.
An Iranian analyst's article posted yesterday by the Iranian news agency IRNA accuses the Pakistani Inter-Services Intelligence (ISI) of having links with terrorists.
Terrorist operations outside the Imam Hossein Mosque in the southeastern city of Chabahar in Iran's Sistan-Baluchestan province killed 39 people mourning on the martyrdom anniversary of the third Imam of Shiites.
The Jundallah group took responsibility for the terror attack, the MEHR news agency reported, citing Dubai TV channel Al-Arabia.
Iranian Parliamentary Speaker Ali Larijani condemned Wednesday's terrorist bombing in southeastern Chabahar City, calling it "brutal and intentional" with an aim to divide Shiites and Sunnis.