The cavity sits at about the same depth as the burial chamber and runs parallel to the tomb’s entrance.
Egyptologist Ryan Johnson from the University of Chicago, who was not involved in the discovery, told Nature the data is “tremendously exciting”.
He said: “Clearly there is something on the other side of the north wall of the burial chamber.”
However, archaeologists have not yet determined whether the cavity is indeed a new burial chamber or part of another tomb.
There is also some scepticism from Egyptian officials, such as former antiquities minister Zahi Hawass.
source: express.co.uk