The Nazi Euthanasia Centre at Bernburg (German: NS-Tötungsanstalt Bernburg) operated from 21 November 1940 to 30 July 1943 in a separate wing of the State Sanatorium and Mental Hospital (Landes-Heil- und Pflegeanstalt) in Bernburg on the River Saale in the German state of Saxony-Anhalt. It was one of several euthanasia centres run by the Nazis under their official "Euthanasia Programme", later referred to after the war as Action T4. A total of 9,384 sick and handicapped people from 33 welfare institutions and nursing homes as well as around 5,000 prisoners from six concentration camps were killed here in a gas chamber using carbon monoxide gas.