In a filing to the UN, Iran gives no further details on case of ex-FBI agent Robert Levinson who disappeared while on an unauthorized mission

State Department announcement comes as FBI already has a $5 million reward for information about Robert Levinson

Soul artist says she came to Islamic Republic knowing women cannot have solo concerts and didn't plan a show, but authorities blacklisted her anyway

Zarif claims Tehran has not received response from Trump administration 6 months after raising possibility