Iranian diplomat Assadollah Assadi, linked to an alleged bomb plot against an Iranian opposition rally, will be extradited from Germany according to the court's ruling.
"The wanted man cannot cite diplomatic immunity because he was on a several day holiday trip outside his host state Austria and not traveling between his host country and the state that dispatched him," the superior regional court in Bamberg said in a statement.
The diplomat was charged with conspiracy to commit murder and being a foreign agent.
Belgian authorities have accused Assadi of being part of an alleged plot aimed at reportedly setting off explosives at a huge annual rally of the Mujahedeen-e-Khalq group, or MEK, in neighboring France.
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Six people linked to the case were seized legally in Belgium, France and Germany, two of whom were later released.