Hossbach was relieved of command on 29 January, and was replaced by General Friedrich-Wilhelm Müller. His three corps were given an order to cease their breakout attempt on 30 January. Along with some units of Second Army, they found themselves encircled in the area of Heiligenbeil and Braunsberg; many of the civilians trapped with them attempted to escape across the frozen Haff to the Frische Nehrung and thence to Pillau or Danzig, reinforced paths marked by lamps having been constructed across the ice by Fourth Army's engineers.