PARIS -- As the alarms sounded at the Louvre Museum on Sunday morning, four suspects took off on two motorbikes, winding their way through central Paris, allegedly carrying with them a haul of "priceless" jewelry once worn by queens and royals.

The Louvre's director has acknowledged a ″terrible failure″ at the Paris tourist attraction after a daylight crown jewel heist over the weekend.

Video has emerged appearing to show the alleged thieves behind the Louvre heist making their escape on a mechanical ladder in broad daylight. Two people can be seen looking around frantically as they slowly descend, minutes after the famed Paris museum was broken into and €88m-worth ( (£77m) ) of France's crown jewels were stolen.

A 24-year-old woman was arrested in Barcelona over the break-in and theft of gold worth more than $1 million, the Paris prosecutor said.

In 1962, the Countess of Paris attended the wedding of fellow European royalty in Queen Marie-Amélie’s sapphires—which were snatched in what has become one of the worst thefts of its kind.

The Louvre Museum in Paris remains closed to the public after robbers stole imperial jewels in broad daylight on Sunday.

Thieves have stolen priceless jewels from the Louvre using a basket lift, according to France's interior minister

The Louvre remained closed Monday after historic jewels were stolen in a daring daylight heist. Thieves used a basket lift to access the museum, smashed display cases, and fled with Napoleonic jewels.