The Corporate Association of Kaesong Industrial Complex that represents the 123 South Korean manufacturing companies that operated factories in the North Korean facility said Thursday it wants to send a delegation to inspect their property. "The global community won't accept North Korea as a nuclear power".
"The U.S. continues to kick up the racket of frantic nuclear war drills even though the situation on the Korean peninsula is on the verge of the outbreak of a worldwide thermonuclear war", the commentary read.
During an address to the United Nations General Assembly in September, Mr Trump declared that the U.S. would "totally destroy North Korea" if forced to defend itself or its allies. They will also prepare for US President Donald Trump's planned trip to Seoul in November, the ministry said in a press release.
A spokesman from South Korea's Defense Ministry declined to comment, saying the information is classified. Some military experts believe that power supply problems make it hard for North Korea to turn on its air defense radars for 24 hours a day and also that the systems might struggle to effectively track advanced warplanes such as B-1Bs, which have low radar-cross sections.
Reuters reported that the United States military said in a separate statement it conducted drills with Japanese fighters after the exercise with South Korea, making it the first time U.S. bombers have conducted training with fighters from both Japan and South Korea at night.
The drills were conducted not long after Lee broke the news about the alleged cyberattacks to reporters.
USA and South Korean wartime operational plans, including a plan to wipe out the North Korean leadership, were stolen by North Korean hackers a year ago, a South Korean ruling party lawmaker said on Wednesday.
"There is an urgent need for the military to change and update parts that were stolen by North Korea", Lee said.
About 235 gigabytes worth of military data was stolen by the hackers, Rhee told CNN.
Tensions between the United States and North Korea have intensified in recent months as the Trump administration has struggled to rein in Kim Jong-un's expanding nuclear and ballistic weapons programme.
CNN reported that depending on the level of detail in the stolen plans, the hack could pose serious challenges for the US-South Korean alliance. North Korea routinely denies responsibility.
In his latest tweet over the weekend, Trump reiterated that diplomatic efforts with North Korea have consistently failed, adding that "only one thing will work".
North Korea has yet to comment on either the bombing drills or the hacking claims.