US President Barack Obama said he does not think North Korea has the capability to mount a nuclear warhead on a missile, in comments aired Tuesday, DPA reported.
"Based on our current intelligence assessments, we do not think that they have that capacity," Obama said in an interview on NBC's Today show.
"But we have to make sure that we are dealing with every contingency out there," he said, noting the US had repositioned some of its missile defences.
"I don't know the leader of North Korea. What I do know is, is that the actions they've taken, the rhetoric they've engaged in, has been provocative," he said. "It has been condemned across the board internationally. And it's unnecessary because, what it's done is, ironically, isolated North Korea further."