On December 24, on Ebert's request regular troops attacked the "Reichsmarinedivision", a division that had rebelled over outstanding pay and the quality of their accommodation. In January 1919, during the so-called "Spartakuswoche", the masses again gathered in Berlin and the KPD and USPD under Karl Liebknecht and Georg Ledebour tried to topple the Ebert government. From January 9 to 12, regular troops and "Freikorps" led by Gustav Noske bloodily suppressed the uprising. On January 15, members of the "Freikorps" "Garde-Kavallerie-Schützendivision" led by Waldemar Pabst, murdered Liebknecht and Rosa Luxemburg.