North Korea Tech is reporting, via Vox, that there were frequent outages on North Korea's internet network over the weekend.

This chart from Dyn Research shows that North Korean websites have been going through regular outages:

Internet connection issues aren't definite proof that someone is trying to attack North Korea. The country's internet is only accessed by a handful of people, so it doesn't take much to force it offline. Officially North Korea only has 1,024 IP addresses.

But the problem could be due to someone launching a cyberattack on the country.

"It would not take much to shut down such access since they are not privy to diverse and redundant Internet routes," Jeff Bardin, Chief Intelligence Officer of internet security company Treadstone 71 told Business Insider in an email. "This would be a fairly easy action by a nation state to bring NK's internet activity to a halt."

Doug Madory, director of Internet analysis at Dyn Research, said: "I haven't seen such a steady beat of routing instability and outages in KP before. Usually there are isolated blips, not continuous connectivity problems. I wouldn't be surprised if they are absorbing some sort of attack presently." He went on to say that "They have left the global Internet and they are gone until they come back."