In 1924, the uyezds of Northern Dvina Governorate were abolished in favor of the new divisions, the districts (raions). Arkhangelsk and Olonets Governorates retained the uyezd division till 1929. On July 15, 1929 the uyezds in these two governorates were abolished, and all areas which currently belong to Arkhangelsk Oblast, together with other areas, merged into the Northern Krai. The krai consisted of the Komi-Zyryan Autonomous Oblast, a number of islands in the Arctic Ocean, as well as five administrative districts ("okrugs"),