The tomb of King Tutankhamun conceals two rooms that could contain metal or organic material, Egypt’s antiquities minister said Thursday.

Antiquities Minister Mamdouh al-Damaty told a press conference that analysis of radar scans carried out by Japanese specialist Hirokatsu Watanabu revealed two hidden spaces on the north and eastern walls of the 3,300-year-old tomb.

"Furthermore, based on the GPR data, curves that might indicate doors were also detected above the cavities, which can be seen as an entrance to those cavities," al-Damaty said.

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The metal and organic material possibly revealed by the scans strongly suggest to the presence of a another burial, boostering a claim by Nicholas Reeves, a British Egyptologist at the University of Arizona.

In July 2015 Reeves published a paper arguing that high-resolution images of the tomb’s walls show “distinct linear traces” pointing to the presence of two still unexplored chambers.

“It does look from the radar evidence as if the tomb of Tutankhamun is a corridor tomb and it continues beyond the decorated burial chamber,” Reeves said at a press conference last November.

King Tut's Tomb May Hide Nefertiti's Secret Grave

According to Reeves, one hidden chamber would contain the remains, and possibly the intact grave goods, of queen Nefertiti, wife of the “heretic” monotheistic pharaoh Akhenaten, Tutankhamun’s father.

Reeves speculated that the tomb of King Tut was not ready when he died unexpectedly at 19 in 1323 B.C., after having ruled a short reign of nine to 10 years. Consequently, he was buried in a rush in what was originally the tomb of Nefertiti, who had died 10 years earlier.

According to al-Damaty, the hidden chambers could contain the tomb of a member of King Tut’s family. However, he did not speculate on Nefertiti.

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New scans will be conducted later this month to reconstruct the exact size of the chambers and the best way to proceed with the investigation.

According to al-Damaty, multiple steps are planned in coming months to unveil new clues about the secrets of King Tut.

"It's a rediscovery that might lead us to the discovery of the century," al-Damaty said.