On 23 May, the US Department of the Treasury designated Morteza Tamaddon, an Iranian national and currently head of the Tehran Provincial Public Security Council, pursuant to Executive Order 13628, which authorises sanctions against persons that limit the freedom of expression or assembly of the Iranian people. The Treasury Department asserts that  Mr. Tamaddon, in his former position as Governor-General of Tehran, limited the Iranian people’s freedom of expression and assembly following the 2009 national elections in Iran, including by cutting off mobile phone communications, and that he was personally responsible for harassing Iranian political opposition leaders.

Treasury Department Press Release