About 350, 000 Syrian refugees have fled to Jordan since the conflict began, a number described as "staggering" by Jordanian Foreign Minister Nasser Judeh.

CNN: STORY HIGHLIGHTS

"It's important for the world to have credibility with respect to our nonproliferation efforts, " Kerry told reporters after meeting Jordanian Foreign Minister Nasser Judeh at the State Department.

NPR: Kerry: Response To NKorea Will Send Iran A Message

Judeh, with whom he later held a press encounter.

UN: Secretary-General