Two small bombs exploded in the northwestern Iranian city of Kermanshah today, wounding at least seven people, an official was quoted as saying.
"The two blasts injured seven people at the governor's office and the trade organisation's building on Monday," the official IRNA news agency quoted the head of Kermanshah's medical faculty as saying.
Kermanshah's governor, Hossein Khosheghbal, told state television the blasts caused minor damage to government buildings and smashed some windows.
Kermanshah lies in Iran's western borderlands, which have suffered unrest among the Kurdish minority for almost 12 months. Several members of Iran's security forces and Kurds have died in street protests and gun-battles.
Government leaders in Iraq's Kurdistan say Iran has attacked Kurdistan Workers Party (PKK) guerrillas in Iraq three times in late April and early May.
The PKK, seeking a Kurdish homeland, accuses Turkey and Tehran of mounting c-oordinated attacks against it and its Iranian wing, PJAK.