Iran says CIA behind nuclear scientist's killing

Iran said Saturday it has evidence that the United States was behind the assassination of an Iranian nuclear scientist this week in Tehran, state media reported.

Mostafa Ahmadi Roshan was killed in a brazen daylight assassination Wednesday. The IRNA state news agency said Saturday that Iran's Foreign Ministry has sent a diplomatic letter to the US saying that it has "evidence and reliable information" that the CIA provided "guidance, support and planning" to assassins "directly involved" in Roshan's killing. (AP)