PARIS — France's court of auditors urged the Louvre museum to speed up its security modernization plans as a priority, in a report conducted before the Oct. 19 jewels heist that noted major delays in the renovation of the world's most-visited museum.

Thursday's report by the Cour des Comptes comes after a series of failings and security issues came to light following the robbery of the $102-million worth Crown Jewels that shocked the world. The thieves used a truck-mounted basket lift to reach a window of the Apollo Gallery and fled with the trove within minutes.

A set of jewelry of Queen Marie-Amelie and Queen Hortense's stolen during the heist.

Stephane De Sakutin / AFP via Getty Images

"The theft of the crown jewels is undoubtedly a deafening alarm bell," Pierre Moscovici, head of

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