BEIJING (AP) — The U.S. envoy to talks on North Korea's nuclear program said Tuesday that negotiators reached a tentative agreement on initial steps for the communist nation's disarmament.

Assistant Secretary of State Christopher Hill said the agreement outlined specific commitments for North Korea and would set up working groups to implement those goals to begin meeting in about a month. He declined to give other details.

"I'm encouraged by this that we were able to take a step forward on the denuclearization issue," Hill said.