The Iranians are probably lying again. They usually do. It's cultural, it's endogamous in their culture.
And FWIW, as an aside, in Achaemenid Persia before the coming of Alexander, veracity was the highest value. Look what Islam hath wrought -- the corruption of a once-noble people.
"The Iranians are probably lying again. They usually do"
You're speaking of the regime, I hope?