Sosnovy Bor
Sosnovy Bor was founded in 1959 as Sebezh-5. It was a settlement serving a secret military installation. On September 1, 1997, the installation was abolished in accordance with the START II treaty. On December 18, 1997, Sebezh-5 was renamed Sosnovy Bor and transformed into a work settlement. The military facilities were transferred to the Ministry of Internal Affairs to be used as a prison.