Washington will use all available means outside the UN Security Council to isolate
North
Korea
over its nuclear weapons programme and counter its growing threat to world order, the US envoy to the United Nations said on Sunday.
The United States will also use its military as a deterrent to the
North's threat, Ambassador Samantha Power told a news conference in Seoul, after visiting the heavily armed Demilitarized Zone (DMZ) border between the rival
Koreas.
"While Security Council resolutions are one tool in our tool box ... we are committed to using all the tools in our tool kit to address this serious threat including the diplomatic pressure that we are mobilising around the world to convince other nations to isolate the regime," Power said.
Power's visit to the region, which included a stop in Tokyo last week, comes amid a push for tougher Security Council sanctions after the
North's fifth nuclear test last month in defiance of a series of UN resolutions.
The United States and South
Korea
have been pushing governments around the world to take unilateral action including discouraging countries from using
North
Korean workers and ending visa waivers for
North
Koreans.
North
Korea
conducted its fifth and biggest nuclear test on Sept. 9 and South
Korea
has said it believes the
North
is ready to conduct another test at any time.
An increase in activity at the
North's nuclear test site could signal preparations for a new test, a US-based monitoring group, 38
North, said on Friday.
The
North
has defied UN sanctions since conducting its firth nuclear test in 2006 and has pressed ahead with the development of weapons programmes including a range of ballistic missiles, which it says it needs for self-defence.