Tutankhamun's tomb is at risk of COLLAPSING: Archaeologists are shocked to discover cracks spreading across the priceless 3,300-year-old burial site

When Tutankhamun's tomb was uncovered in 1922, it was considered the most significant archaeological discovery of the 20th century.

But archaeologists now warn that the priceless 3,300-year-old tomb is at risk of collapsing.

Researchers have discovered major cracks spreading through the rock that could bring the burial site crumbling down.

What's more, rising humidity is peeling away and encouraging fungi that are eating away at the priceless murals.

In a new study, archaeologists from Cairo University found that the tomb has developed a fault line running through the ceiling of the entrance and burial chambers.

This spreading network of fissures is allowing rainwater to seep in from above, eroding the intricate details and undermining the tomb's integrity.

Since the tomb is made of a stone called Esna shale, which expands and contracts with changes in humidity, the spreading damp means that total collapse is now a serious danger.

Sayed Hemada, author of the study and Professor of Preservation of Architectural Heritage at Cairo University, told Daily Mail: 'The royal tombs in the Valley of the Kings require urgent intervention and accurate scientific studies to analyse the risks and how to mitigate them.'

The Valley of the Kings, located West of Luxor, is home to dozens of royal tombs, of which Tutankhamun's is one of the smallest.

Although these structures have lasted thousands of years, their geology makes them extremely vulnerable to flooding.

Professor Hameda explains: 'These tombs were dug into the foothills of the valley's mountains, which exposed them and will continue to expose them to the dangers of flash floods resulting from heavy rains, especially when they carry debris, stones and soil along the way.'

The worst of these floods happened in October 1994, when most of the royal tombs in the Valley of the Kings were submerged.

Professor Hameda says that this flood was a turning point for the structural integrity of Tutankhamun's tomb.

The silty waters flooded the burial chamber, opening new fissures, raising the humidity levels, and triggering fungal growth that has severely damaged the murals.

In his study, Professor Hameda said that the growing fissure had 'allowed rainwater to penetrate and worsened the cracks, placing the ceiling under pressures exceeding the capacity of Esna shale rock to withstand, particularly given its tendency to expand and contract with fluctuations in humidity.'

With the brittle rock now under such intense stress, the report warns that the walls could undergo 'rock bursting', which creates a sudden explosion of stone.

Although Professor Hameda says the tomb will 'definitely not collapse anytime soon', this damage means it might not last as long as it otherwise could.

'There are current and future risks facing the cemetery, which will affect its structural integrity in the long term, and the cemetery may not last for thousands of years as it was built,' he says.

However, despite the risk that another flash flood could occur at any time, researchers warn that little is being done to plan for this eventuality.

Mohamed Atia Hawash, Professor of Architectural Conservation at Cairo University's Faculty of Archaeology, told Independent Arabia that the surrounding mountains themselves suffer from extensive fissures.

These fractures pose a risk of detaching large blocks of rock and sending them crashing down onto nearby tombs.

Professor Hawash says: 'A disaster could strike at any moment, and if the Valley of the Kings is to be preserved, action must be taken before it is too late.'

The face of Tutankhamun was an Egyptian pharaoh of the 18th dynasty, and ruled between 1332 BC and 1323 BC. Right, his famous gold funeral mask

Tutankhamun was an Egyptian pharaoh of the 18th dynasty, and ruled between 1332 BC and 1323 BC.

He was the son of Akhenaten and took to the throne at the age of nine or ten.

When he became king, he married his half-sister, Ankhesenpaaten.

He died at around the age of 18 and his cause of death is unknown.

In 1907, Lord Carnarvon George Herbert asked English archaeologist and Egyptologist Howard Carter to supervise excavations in the Valley of the Kings.

On 4 November 1922, Carter's group found steps that led to Tutankhamun's tomb.

He spent several months cataloguing the antechamber before opening the burial chamber and discovering the sarcophagus in February 1923.

When the tomb was discovered in 1922 by archaeologist Howard Carter, under the patronage of Lord Carnarvon, the media frenzy that followed was unprecedented.

Carter and his team took 10 years to clear the tomb of its treasure because of the multitude of objects found within it.

For many, Tut embodies ancient Egypt's glory because his tomb was packed with the glittering wealth of the rich 18th Dynasty from 1569 to 1315 BC.

Egypt's antiquities chief Zahi Hawass (3rd L) supervises the removal of the lid of the sarcophagus of King Tutankhamun in his underground tomb in the famed Valley of the Kings in 2007.