A senior cleric in Iran has condemned a raid by US forces on an Iranian government office in Kurdish controlled northern Iraq. Half a dozen people were detained and computers and documents were seized. The building is described as a liaison office that was being turned into a consulate. The raid, in the town of Arbil, has been condemned by the regional Kurdish government. The head of Iran's Guardian Council, Ayatollah Ahmed Jannati, spoke about the raid during Friday prayers: "This could not mean anything but rebellion, insurgency and brutality," he said. "I don't know why they don't stop such actions. We condemn this raid."Russia has also denounced it as illegal. A Foreign Ministry spokesman said it was "completely unacceptable that military troops of one state can storm the diplomatic bureau of another, in the territory of a third state". Washington accuses Iran of helping to fuel violence in Iraq by supplying insurgents with weapons and cash.