In December 2017, the Security Service of Ukraine published classified documents revealing that the NKGB of the USSR and its units in the Union and autonomous republics, territories and regions were engaged in the selection of candidates for participation in the 1945 council that elected Patriarch Alexy I of Moscow from the representatives of the clergy and the laity. This included "persons who have religious authority among the clergy and believers, and at the same time checked for civic or patriotic work". A letter sent in September 1944 and signed by the head of the 2nd Directorate of the NKGB of the USSR Fedotov and the head of the Fifth Division 2nd Directorate of Karpov stated that "it is important to ensure that the number of nominated candidates is dominated by the agents of the NKGB, capable of holding the line that we need at the Council."