A UK-based researcher said the cause of the internet outage in the secretive state seems to be internal rather than an external attack.

Internet access in North Korea has experienced a major outage, according to a United Kingdom-based monitor, but the exact cause may be internal rather than the result of a cyberattack.

Junade Ali, a researcher who monitors the North Korean internet, said on Saturday that the secretive country’s entire internet infrastructure is not registering on systems that monitor global internet activity.

“A major outage is currently occurring on North Korea’s internet – affecting all routes whether they come in via China or Russia,” Ali said.

“Hard to say if this is intentional or accidental – but seems like this is internal rather than an attack,” he said.