Several North Korean websites have gone offline since Monday, with one expert suggesting the country could be making wider changes to its digital infrastructure in a possible bid to disconnect from the global web.

The changes to North Korea’s internet infrastructure come amid a wide-ranging campaign to overhaul how the isolated country communicates its narratives to the outside world, particularly South Korea.

Multiple websites hosted inside the country, including those of Kim Il Sung University and the international radio station Voice of Korea, experienced brief outages on Monday and Tuesday for periods lasting between