Iran protested the United States and United Kingdom for their roles in the assassination of Iranian nuclear scientist Mostafa Ahmadi Roshan last week, implicating the two nations in the attack, the official Iranian Republic News Agency (IRNA) reported Saturday.
Iran sent a letter to the Swiss embassy in Tehran - the only official diplomatic channel between Iran and the United States in Tehran - saying that CIA-led operations in the Islamic Republic are known, and blaming the US for supporting "terrorist groups against Iran."
Tehran also sent a letter to the British Foreign Ministry, claiming British intelligence operations aided in the killing of the 32-year-old Roshan in a car bomb.
The letter cited a quote by Foreign Intelligence Service Head (MI6) John Sawers, who said that the UK was beginning intelligence operations against Iran, according to IRNA.
Iran demanded a response from both governments.