Runaway slaves who had escaped to Union lines had previously been held by the Union Army as "contraband of war" under the Confiscation Acts; when the proclamation took effect, they were told at midnight that they were free to leave. The Sea Islands off the coast of Georgia had been occupied by the Union Navy earlier in the war. The whites had fled to the mainland while the blacks stayed. An early program of Reconstruction was set up for the former slaves, including schools and training. Naval officers read the proclamation and told them they were free.