Four people now face charges in Louvre Museum theft case as Paris prosecutors expand investigation into organized crime conspiracy at world-famous gallery.

Much of the blame has been placed on the Louvre’s security camera system. The building’s exterior is “surrounded by cameras,” but there “were not enough officers to continuously monitor the feeds.” Other factors include the museum’s ongoing construction,

The Paris prosecutor said Saturday two new suspects were handed preliminary charges for their alleged involvement in the crown jewels heist at the Louvre museum.

There are four perpetrators, at least one of whom remains at large, plus possibly the one or those who ordered the crime and the jewelry,” Interior Minister Laurent Nuñez said.

Louvre Museum in Paris, a prosecutor says there's no sign of the missing jewels, and still only 2 people in custody.

Days after thieves took just minutes to steal eight pieces of the French crown jewels from the Louvre, a former bank robber says he warned a museum official of glaring weaknesses — including jewel cases by streetside windows that were “a piece of cake” to attack.

The dragnet tightened around the Louvre thieves on Thursday. Five more people were seized in the crown-jewels heist — including a suspect tied by DNA — the Paris prosecutor said, widening the sweep across the capital and its suburbs.