Updated

The U.S. says the only way to get a nuclear North Korea to disarm is for nations to "close ranks" and demand it.

That's from the U.S. envoy on North Korea, Glyn Davies. Davies said Friday that Washington is not averse to talking with Pyongyang.

But he says the bar for resumed engagement is higher after the North scuttled an aid-for-disarmament deal, then conducted long-range rocket and nuclear tests and issued threats.

Davies says the key to a diplomatic solution is for the U.S. and North Korea's four neighbors to send a unified message — that Pyongyang must live up to previous commitments to denuclearize.

He says the U.S. has "every expectation" China will use its special relationship with the North to encourage it to "choose a different path."