NKorea threatens to shut down joint factory park

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A visitor looks at North Korean territory at the unification observation post near the border village of Panmunjom, that has separated the two Koreas since the Korean War, in Paju, north of Seoul, South Korea, Saturday, March 30, 2013. North Korea issued its latest belligerent threat Saturday, saying it has entered "a state of war" with South Korea a day after its young leader threatened the United States because two American B-2 bombers flew a training mission in South Korea. (AP Photo/Lee Jin-man)

SEOUL, South Korea (AP) — North Korea is threatening to shut down a factory complex that's the last major symbol of inter-Korean cooperation.

A spokesman for the North's office controlling the Kaesong industrial complex said Saturday that it would close the factory park just across the border in North Korea if South Korea continued to undermine its dignity.

Pyongyang expressed anger over media reports that said the factory remained open because it's a source of hard currency for the North.

North Korea has previously made such threats, and Saturday's warning is part of a torrent of bellicose rhetoric in recent weeks. North Korea is angry about annual South Korea-U.S. military drills and U.N. sanctions over its nuclear test last month.

Business has been operating normally at Kaesong despite the rising animosity between the Koreas.