The accusation followed claims earlier this year from the NIS that North Korean hackers sent phishing emails to the South’s state railway authorities in preparation for cyberterror attacks on traffic control systems.
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American spy satellites, aircraft and ships have been watching as the North Korean navy searched for the missing sub, the report added.
The vessel is believed to have suffered a failure during an exercise and is presumed to have sunk.
Pyongyang threatened to launch nuclear strikes on the United States and South Korea this week, as the two countries started their annual joint military drills.
Amid blasts of explosives and camouflaging smoke, USA and South Korean marines and sailors stormed a beach aboard assault vehicles Saturday in a mock amphibious landing.
On Saturday, U.S. and South Korean troops staged a massive landing drill, their largest ever, on the east coast of South Korea that mobilized 17,200 soldiers, including some from Australia and New Zealand, according to local media reports.
CNN reported yesterday that North Korea has been searching for one of its submarines that has been missing for days off its east coast.
U.N. Secretary-General Ban Ki Moon implored North Korean leaders to listen to reason on Friday, following a report that North Korean leader Kim Jong Un had ordered more nuclear tests following a new resolution from the Security Council created to punish Pyongyang.
North Korean has issued another threat of war over the drill.
Reacting to Kim’s call for more nuclear tests, South Korea yesterday said he was being “rash” and displaying his ignorance of global opinion.
Tensions in the region have been high since North Korea conducted its fourth nuclear test in January and a rocket launch last month, triggering fresh U.N sanctions.
Tensions in the region are growing as the US and South Korea hold joint military drills involving over 15,000 Korean and 300,000 American troops. North Korea has a large stockpile of short-range missiles and is developing long-range and intercontinental ballistic missiles (ICBMs). It’s A move that came after North Korea’s test-launch of several missiles, and just before Kim Jong Un was photographed posing with what North Korea claims are miniaturized nuclear warheads.
North Korea on Sunday warned it would make a “pre-emptive and offensive nuclear strike” in response to the joint exercises. Similar allegations were made by South Korea after their Corvette the ROKS Cheonan was sunk killing 46 of the 104 hands on-board in 2010.
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The two Koreas remain technically at war since the 1950-53 Korean War, which ended in an armistice, not a peace treaty.
