French President Emmanuel Macron said the theft at the Louvre was an attack on a heritage we cherish, because that is the history of France.
At the same time, he announced that the authorities would soon recover the stolen jewelry and bring the perpetrator to justice.
Le Parisien newspaper quoted an initial investigation source as saying that the group of criminals wearing masks broke into the museum's construction area, using an elevator to carry goods to approach the Apollo room.
They took away 9 valuables, including the crown, necklace, burthen and crown of Queen Eugenie, wife of Emperor 8: 8:00 III, which was crowned with 1,354 diamonds.
However, the famous Regent diamond weighs 140 carat, worth more than 60 million USD, and is still safe.
The Apollo Exhibition House houses the French Royal Jewelry Collection.
While fleeing, the group of criminals dropped the crown of Queen Eugenie outside the museum.
French authorities have not confirmed specifically the stolen items.

Investigators believe that this was the actions of a group of professional criminals, likely hired by foreign subjects.
According to Home Secretary Laurent Nunez, the theft only lasted for about 7 minutes, proving that the criminal group had studied the scene carefully before.
The most recent theft at the Louvre Museum occurred in 1983, when two Japanese-era metal items, including a certificate and a certificate, were stolen. It was not until 2021 that two valuable assets were found in Belgium.