GENEVA, Sept. 15 (Xinhua) -- The United States wants to keep all options open on the Democratic People's Republic of Korea (DPRK), but will use all diplomatic channels it can, said Robert Wood, U.S. ambassador on disarmament at the United Nations (UN) here on Friday.

The United States believes current sanctions imposed on the DPRK have not had time to be fully applied and must be given a chance, Wood said at a news conference at the UN headquarters in Geneva.

"Sanctions have not had a real opportunity to bite as hard as we would like them to bite, and that comes from the fact that they have not been fully implemented," the diplomat said.

"North Korea has brought the international community to a very dangerous situation," said Wood. "They are a great threat to peace and international security and our hope is that they will choose a different path."

As for the Treaty on the Prohibition of Nuclear Weapons, or the Nuclear Ban Treaty, that is set to open for signatures at the UN General Assembly next week, he said the United States did not intend to become a party to the treaty, and is concerned with its failure to offer any solution to the grave threat posed by the DPRK's nuclear program.

Wood said the ban treaty would run counter to the current Nuclear Proliferation Treaty (NPT) supported by many other nations, adding that the ban treaty ignores the global security environment and will not advance nuclear disarmament, but may stymie it.

"It will not make the world a safer place" and it will not result in any reduction of nuclear weapons, the U.S. diplomat said.