A group of thieves stole jewelry from Paris' Louvre museum. Here's which items they took, according to officials.

About 100 investigators are now involved in the police hunt for the gems and heist suspects​, said prosecutor Laure Beccuau, whose office is leading the investigation.

Two traces of DNA were found in one of the helmets and one of the gloves suspects left behind after a jewelry heist at the Louvre on Sunday, French police told ABC News.

Museum security concerns rise after the latest Louvre robbery, as experts recall other major art thefts, including the Isabella Stewart Gardner Museum's still-unsolved heist from 1990.

Thieves in France pulled off a daring daytime heist Oct. 19 when they stole multiple pieces of priceless jewelry from the Louvre in a matter of minutes about a half hour after the museum opened to the public for the day.

The Louvre Museum in Paris reopened Wednesday morning, five days after the brazen daylight theft of France’s crown jewels, NBC News reports.

Other items in the Louvre that belonged to the Empress are diamond brooches, among them this piece from 1855. It is called a reliquary brooch, although the Louvre says that the diamond-clad item does not contain any spaces to house a holy relic.

A criminal group broke into the Apollo Gallery of the Louvre Museum in Paris, swiftly stealing nine invaluable pieces from the French Crown Jewels collection