NBC Boston spoke to an art theft expert who is also the director of security and chief investigator at the Gardner Museum about the logistics of this heist at the Louvre and what the thieves might be planning to do with the crown jewels. The plot was carried out just 30 minutes after the Louvre opened on Sunday morning.

A minute-by-minute look at the daring Louvre robbery, using maps, photos and video to unravel how one of the world’s most famous museums was breached.

French broadcaster BFMTV acquired a video which purports to show thieves during their heist of priceless jewels from the Louvre's Apollo Gallery.

How thieves pulled off the extraordinary theft of priceless jewels from the world-famous museum in broad daylight.

Precious artifacts snatched from Paris’s Louvre Museum Sunday include an emerald necklace set among more than 1,000 diamonds gifted by Napoleon to his second wife and other treasures of “inestimable” value.

Thieves at the Louvre museum stole eight items of "incalcuable" value from a collection of French crown jewels, including items belonging to Empress Eugénie, Queen Hortense and more

According to some labor organizations, the museum's security has been affected by staff reductions in recent years, as visitor numbers soared. Several French museums have recently been targeted by thefts.

Authorities were racing Monday to reassure the public about security at key cultural sites — and find the jewels stolen from the museum before they can be broken up and melted down.