North Korea's internet suffers massive outage... possible cause of internal issues

"North Korea experienced a large-scale internet outage on the 7th," Reuters reported.
The article quoted a researcher as saying, "The Internet outage in North Korea is affecting all connection routes, and the cause is more likely to be an internal problem than a cyber attack."
Reuters added that "North Korea's main news homepage and the Foreign Ministry's website are currently inaccessible."