Several North Korean propaganda sites were still inaccessible on Friday, more than 24 hours after they went offline, in what one expert interpreted as a sign that the communist state is revamping its “extraordinarily inefficient” external messaging.

The websites of Uriminzokkiri, DPRK Today, Arirang Meari, Tongil Voice, Ryomyong and Ryugyong have been down since at least Thursday morning in what appears to be a deliberate shutdown. All of the outlets target South Korean audiences.