Iranian law enforcement authorities have detained a terrorist group in the northwest of the country, it tried to smuggle weapons into the country for use in the unrest, Tasnim news agency reported.

"All members of a terrorist group linked to the unrest have been identified and detained in West Azerbaijan. They planned, by smuggling weapons and ammunition into the country and using them in riots, to threaten security in Iranian cities," the agency said.

The news agency noted that the detainees had confessed their intention to use weapons against police officers and civilians during the riots. According to the agency, they were directly led by foreign terrorist groups and a number of anti-government elements from Western countries.