Reza Pahlavi, who has lived in exile since his father was toppled in the 1979 revolution, has appealed for a UN investigation into human rights violations during recent unrest.
In a letter, Pahlavi urges UN Secretary-General Ban Ki-Moon to press Iran to release those arrested and act to "halt the intolerable and increasingly dangerous march of events".
At least eight people died during protests on Sunday, while hundreds were arrested in the worst unrest in the aftermath of June's disputed presidential election.
H/T: The Jawa Report