SEOUL: North Korea has apparently sealed a tunnel at its nuclear test site, a government official said on Thursday ahead of US President Barack Obama’s arrival in Seoul for a two-day visit.

South Korea’s defense 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.

Premium + Digital Edition

Ad-free access


P 80 per month
(billed annually at P 960)
  • Unlimited ad-free access to website articles
  • Limited offer: Subscribe today and get digital edition access for free (accessible with up to 3 devices)

TRY FREE FOR 14 DAYS
See details
See details