North Korea appears to have resumed work at its nuclear test site after a perplexing series of volleyball matches were held there, according to analysts who studied satellite images of the site, renewing concerns that a major weapons test could be imminent.
Many observers had feared that North Korea would test a nuclear device at the site around April 15, the birthday of Kim Il-sung, the North’s founding president and the grandfather of the current leader, Kim Jong-un. But Mr. Kim’s government celebrated the day instead with a military parade in Pyongyang, the capital, during which a fleet of missiles were rolled out, including what analysts believed were never-before-seen long-range ballistic missiles.
North Korea carried out a missile test on Sunday, but it was considered an embarrassing failure, with the projectile exploding immediately after liftoff.
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