When Nazi Germany invaded Soviet Union on 22 June 1941, Lithuanians organized an anti-Soviet June Uprising in hopes that they could restore Lithuanian independence. Therefore, they started restoring pre-Soviet state institutions under the Provisional Government of Lithuania. On 24 June 1941, the Provisional Government recreated the pre-war Ministry of Internal Affairs with three departments – State Security, Police, and Prisons.[3] The State Security Department headed by Vytautas Reivytis.