In 2015, English archaeologist Nicholas Reeves announced that he had discovered evidence in high resolution scans of Tutankhamun's tomb "indications of two previously unknown doorways, one set within a larger partition wall and both seemingly untouched since antiquity ... To the north appears to be signaled a continuation of tomb KV62, and within these uncharted depths an earlier royal interment – that of Nefertiti herself." Radar scans conducted in November 2015 by Japanese radar expert Hirokatsu Watanabe seemed to confirm Reeves' theory that there were likely voids behind the northern and westerns walls of Tutankhamun's burial chamber. A second radar scan could not replicate Watanabe's results. A third radar scan has eliminated the possibility that there are any hidden chambers. The positive findings of the first GPR scan were likely a result of 'ghost' reflections of the signal from the walls.