Saeed Ohadi told state TV by phone from Saudi Arabia that the incident might have been caused by the closure of a road. State TV says another 60 Iranian pilgrims were wounded in the incident.
Saudi authorities say at least 717 people were killed and at least 805 were injured.
Thursday's disaster was the deadliest such incident on the annual hajj pilgrimage in more than two decades, and comes nearly two weeks after a crane collapsed in Mecca, killing 100 people.
