Earlier General Siavash Mihandoost, the Army’s senior official in Isfahan province, said the relatively loud sound of the explosion that was heard in the eastern parts of Isfahan on Friday morning was the result of shots fired at “suspicious” objects by the air defense units, Tasnim reported.

He said there have been no damages or specific incidents.

„The sound was related to Isfahan‘s air defense systems firing at suspicious objects and we have not had any damage or accident,“ Mihandoust said.

Officials also said important facilities in Isfahan province, especially nuclear sites, are completely safe.