On October 22, France's President Emmanuel Macron called for accelerated deployment of the museum's security measures three days after the Louvre robbery.

French government spokesman Maud Brejon said at a press conference that both administrative and judicial investigations into the case are under way. Brayong said that at the cabinet meeting held on the 22nd, Macron said that he was deploying security measures for the Louvre and asked to "speed up these measures".

Prosecutors in Paris said on the 21st that the economic losses caused by the robbery of the Louvre Museum are estimated to reach 88 million euros. French media quoted prosecutors as saying that about a hundred investigators were chasing the four perpetrators who were at large.

According to the Paris prosecutor's news, at around 9: 30 on the 19th, four masked men came outside the Louvre, divided their labor and cooperated to operate the lifting device, sneaked into the room from the external balcony of the building, snatched the displayed jewelry, and threatened the museum security with an angle grinder. Within minutes, nine pieces of jewelry were robbed, and one of the crowns belonging to Queen Eugenie has been found by the police. The Louvre was temporarily closed on the 19th. On the 20th, the museum closed shortly after announcing the opening of some exhibition halls. On the 22nd, the museum reopened to the public.