North Korea seals nuclear test tunnel, says Seoul official
Published on Apr 24, 2014 5:06 PM
SEOUL (AFP) - North Korea has apparently sealed a tunnel at its nuclear test site, a government official said Thursday ahead of US President Barack Obama's arrival in Seoul for a two-day visit.
South Korea's defence ministry warned earlier this week that the North could be preparing to carry out a fourth nuclear test, citing increased activity at the Punggye-ri site.
"It is believed that North Korea has placed detonator, fissile material and measurement devices in the tunnel and sealed it," the official, who declined to be identified, said Thursday in a briefing for foreign news media.
He said the information was based on unspecified intelligence reports.
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