WASHINGTON -- The United States and North Korea had two days of "productive" talks in Pyongyang over a North Korean demand to get off the U.S. list of state terrorism but apparently made no breakthrough, a State Department spokesman suggested Thursday.

"We felt the discussions were productive. . . . But in the end, what matters is that they take the steps that are necessary to get them off the list, they end their support of terrorism," spokesman Richard Boucher said.

He said the chief U.S. delegate to the talks, Michael Sheehan, urged North Korea to implement measures required by the U.S. government for the North to be removed from the list of countries Washington says support terrorism.