Parisian prosecutors have announced the arrest of four more individuals linked to last month’s Louvre jewel heist, from which thieves made off with $102 million in valuables.

According to The Associated Press, Laure Beccau, the prosecutor overseeing the inquiry, stated that two men and two women, aged 31 to 40, are now in custody.

The Associated Press reported that Beccau did not specify the roles these suspects are alleged to have played in the audacious robbery.

Laurence des Cars, the director of the Louvre, had previously conceded a “terrible failure” in the museum’s security, remarking, “Despite our efforts, despite our hard work on a daily basis, we failed.”

Reports indicate that des Cars acknowledged issues with camera placement, noting that the single exterior camera monitoring the museum was positioned away from the balcony providing access to the gallery housing the valuable jewels. The Guardian further reported des Cars confirmed that all museum alarms were operational during the break-in.

The AP reported that des Cars recently outlined the museum’s upgraded security protocols to the Committee of Cultural Affairs of the National Assembly.

The Louvre director also disclosed that the thieves employed disc cutters to access the display cases and retrieve the stolen items. She explained that although the display cases had been updated in 2019 to guard against weapon attacks, the specific technique used by the gang in the October 19 heist was “not imagined at all.”

Beccau had previously indicated that the thieves apparently utilized a truck-mounted lift, similar to those used by movers for heavy items, to reach the museum’s second floor. There, they managed to breach the security in broad daylight and abscond with eight jewels, collectively valued at 88 million euros, or $102 million.

Among the stolen items are a diamond-and-emerald necklace gifted by Napoleon to Empress Marie-Louise, jewels associated with 19th-century Queens Marie-Amélie and Hortense, and Empress Eugénie’s pearl-and-diamond tiara; none of these treasures have yet been recovered.

“We failed these jewels,” des Cars reportedly stated. The same source also quoted the director emphasizing that no entity, “not even the Louvre,” is immune to “brutal thieves.”

The AP reported that preliminary charges have already been brought against three men and one woman who were arrested in October regarding the heist.

Digital’s Michael Dorgan and