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Core Points - A robbery occurred at the Louvre Museum in Paris on the morning of October 19, leading to a temporary closure of the museum for one day [1] - Several masked suspects broke into the museum and stole nine pieces of jewelry from the Napoleonic era, with the entire operation lasting approximately seven minutes [2][3] - The French Interior Minister highlighted the significant security vulnerabilities within the French museum system as a result of this incident [2] - One piece of jewelry was recovered after being dropped by the suspects during their escape [2] - The police are actively pursuing three to four suspects, who are believed to have conducted reconnaissance prior to the robbery [4] - The Paris prosecutor's office has opened an investigation into the case, focusing on organized gang theft and conspiracy to commit a crime [6] - The French President is closely monitoring the investigation and has been receiving updates from the Interior and Culture Ministers since the morning of the incident [7]