Beijing ? The United States and North Korea urged each other Sunday to make concessions as envoys to disarmament talks called a three-week recess, deadlocked over what the American envoy said was the North’s demand for a nuclear power plant.

The adjournment came after 13 days of talks failed to produce a statement of principles to guide renewed negotiations aimed at persuading North Korea to renounce nuclear weapons. The delegations said the six-nation talks would resume the week of Aug. 29.

The U.S. envoy, Assistant Secretary of State Christopher Hill, said talks stalled over the North’s demand for the statement to include a promise that it be given a nuclear reactor. He said all five other delegations rejected that.

“We decided it was time to end it and go to recess, with the idea that they can go back and think about what they’ve been told, which is, they’re not going to get a light-water reactor,” Hill told reporters.