Subsequently, on 20 June 1948, the Reichsmark and the Rentenmark were abolished in the western occupation zones and replaced with the Deutsche Mark issued by the Bank deutscher Länder (later the Deutsche Bundesbank). Because the Reichsmark was still legal tender in the Soviet occupation zone, the currency flooded into the east from the west, where it was worthless. This caused sudden inflation, which caused privately held cash in the Soviet zone to become worthless overnight.