The report issued by the IRNA news agency today says the victims included a 14-year-old girl and three young boys, all age 3. Another 28 Saudi religious pilgrims were hospitalised over exposure to the poison, which is commonly used to kill insects and rats.
The incident took place in the northeastern Iranian city of Mashhad, which is home to a major Shiite Muslim Shrine. The city is visited by nearly two million foreign pilgrims per year, coming from Saudi Arabia, Iraq, Bahrain, Azerbaijan and the Indian subcontinent.