Karelo-Finnish Soviet Socialist Republic
Another district established in March 1940 was Yaskinsky District with the administrative center in the work settlement of Yaski (Jääski). It was a part of the Karelian ASSR, and of the Karelo-Finnish Soviet Socialist Republic after March 31, 1940. On November 24, 1944, Yaskinsky District was transferred from Karelo-Finnish Soviet Socialist Republic to Leningrad Oblast. On October 1, 1948, the district was renamed Lesogorsky, and on January 13, 1949, all localities whose names originated in Finnish were renamed using Russian names. In particular, Yaski was renamed Lesogorsky and Enso was renamed Svetogorsk. On December 9, 1960, Lesogorsky District was abolished and merged into Vyborgsky District.