The rial has seen its value fall by 30 percent since June amid severe US sanctions

Tehran's foreign ministry accuses Foundation for Defense of Democracies and its chief Mark Dubowitz of 'launching a smear campaign' against it

No details provided on allegations against Fereydoun Ahmadi and Mohammad Azizi, detained amid severe financial crisis

Rouhani's plan would see country's central bank slash four zeros from local cash and rename it 'tomans'; legislation unlikely to be considered by parliament soon

As Iranian rial hits record low, Tehran decides on move to simplify transactions; nation's coin will be known as 'toman'

Tehran says punitive economic measures won't deter it from advancing its nuclear program; citizens feel they are bearing the brunt