Fears North Korea did nuclear test
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BEIJING - South Korea and the US yesterday sought to play down fears that North Korea might have conducted a nuclear test after reports of a large explosion in the northern part of the communist country.
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A nuclear test by North Korea would pose  an "unacceptable threat" to peace and stability in the world  and further isolate the reclusive nation, the U.S. State  Department said on Tuesday.
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Japan has boosted surveillance of North Korea after seeing vehicles entering and leaving a suspected nuclear test site but does not know whether a test is imminent, a news report said Thursday.
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TOKYO, Oct. 4 -- North Korea declared Tuesday that it would conduct a nuclear test to bolster its defenses against the United States, raising tensions in the region and marking the communist government's first unambiguous pledge to prove it has become a nuclear power.
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The United States said on Tuesday that last week&#39;s blast in North Korea that stirred fears of a nuclear explosion might have been demolition work for a power project, as Pyongyang has asserted.
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A day after North Korea said it will conduct a nuclear test in the future, ally China has weighed in, calling on all sides to exercise calm and restraint. "We hope that the DPRK (North Korea's official name) will keep calm and restrained on the nuclear test issue," Chinese Foreign Ministry spokesman Liu Jianchao said in a statement reported by China's Xinhua news agency.
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Negotiators are wary over how the North Koreans will respond to talks since their first atomic blast test more than two months ago.
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North Korea said on Tuesday that it would conduct a nuclear test in the future but remained committed to the denuclearization of the Korean peninsula, Pyongyang's official KCNA news agency said.
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South Korea said on Wednesday it was gravely concerned over North Korea's plans to test a nuclear bomb, with the United States saying the move would be "an unacceptable threat" to world peace.
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WASHINGTONâAn explosion last Sunday in South Korea prompted huge warning signals, as all eyes shifted to North Korea glaring skeptically as to whether the blast was a nuclear test of some sort.
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SEOUL -- Tensions mounted over North Korea's threat to test its first atomic bomb, with shots ringing out yesterday along the border with South Korea and with Japan warning of harsh sanctions if Pyongyang goes nuclear.
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South Korea and US intelligence sources have detected unusual activity in North Korea believed linked to possible preparation for a missile test, the Ministry of National Defense said yesterday.
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A huge explosion in North Korea last week was a deliberate blast to pave the way for a hydro-electric dam, Pyongyang said Monday. Washington and Seoul have said the explosion was unlikely to have been a nuclear weapons test.
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North Korea said on Tuesday it would conduct its first nuclear test, and Washington warned it would respond to such an "unacceptable threat" to world peace.
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SEOUL, South Korea/Washington  - A huge explosion  rocked North Korea last week but U.S. and South Korean  officials said Sunday it was unlikely to have been a nuclear  weapons test despite the appearance of a "peculiar cloud" over  the area.
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North Korea is to conduct a nuclear test, the foreign ministry says in a statement.
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An increasingly isolated North Korea said on Tuesday it would conduct its first-ever nuclear test, blaming a U.S. "threat of nuclear war and sanctions" for forcing its hand.