And inside the 2,000-year-old tomb, three mummies have been found.
Other people voiced concern that exhuming the remains could invoke the so-called "curse of the pharaohs", which is said to impact anyone who disturbs an ancient Egyptian mummy.
Egypt's Antiquities Ministry said that after an initial round of preservation work, the 30-ton sarcophagus will be lifted out from the construction site and transferred to its facilities.
Egyptian archaeologists have finally managed to open the big black granite sarcophagus, which was discovered from a long concealed tomb in Alexandria, Egypt, earlier this month.
The granite casket, which had been sealed, was thought to be the largest ever found in the Egyptian port city of Alexandria.
He said: "We found the bones of three people, in what looks like a family burial".
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"In this regard, he denied the rumors spread by some global newspapers that opening the sarcophagus would unleash the curse that would bring disaster to the world".
Now experts will prise open the ancient sarcophagus in the hope new secrets will be uncovered.
He also wondered why this sarcophagus has capture attention, though most of the discovered stone sarcophagi are sealed and intact, and are more luxurious and elegant than the one found in Alexandria.
Three decomposed mummies were found in the sarcophagus, declared Secretary-General of the Supreme Council of Antiquities Mostafa Waziri.
"We've opened it and, thank God, the world has not fallen into darkness, said Waziri".
The tomb was found to contain three skeletons, believed to be those of soldiers, as one of the skulls has marks indicating an arrow wound.
The sarcophagus, nearly three metres across and two metres high, is believed to date from the early Ptolemaic period, which began following the death of Alexander in 323BC. "That is why I called the Ministry of Antiquties to hurry up and open the sarcophagus as soon as possible, to put an end to such a dream and suggestions", Hawass told Ahram Online.