Official Iranian Foreign Ministry spokesman Ramin Mehmanparast has invited representatives of the EU, the non-aligned movement countries and diplomatic representatives to visit Iran's nuclear facilities before the coming meeting in Istanbul between Iran and the 5+1 countries, Trend cites Iranian news agency IRNA. Earlier on Monday Iran's representative at the International Atomic Energy Agency, Ali Asghar Soltanieh invited representatives of Russia, China, the EU and developing countries friendly to Iran for the same purpose, AP reports.