 Mitte was within the Soviet zone which became East Berlin; the station was renamed Heinrich-Heine-Straße on 31 August 1960 following a decision by the Berlin "Magistrat" on 22 July to rename the street.After the construction of the Berlin wall a year later, on 13 August 1961, U-Bahn trains on Lines C and D ( and ) no longer stopped in East Berlin and Heinrich-Heine-Straße became one of the ghost stations.The entrances were blocked up and the stairwell enclosures removed so that they were no longer visible.