Kempka was one of those responsible for the burning of Hitler and Eva Braun's corpses after they committed suicide together on the afternoon of 30 April 1945. Otto Günsche had telephoned Kempka and told him to obtain as much petrol as he could and bring it to the emergency exit of the "Führerbunker". Kempka and his men brought over eight to ten army petrol cans which had an estimated 180 to 200 litres of petrol and deposited them where they had been told to do so. The lifeless bodies of Hitler and Eva Braun were carried up the stairs and through the bunker's emergency exit to the garden behind the Reich Chancellery, where they were burned. Later, SS guards brought over additional cans of petrol to further burn the corpses.