Four more people were arrested Tuesday in the investigation into last month's spectacular daylight heist of imperial jewels from the Louvre Museum, French authorities announced.

Paris prosecutor Laure Beccuau, whose office is heading the investigation, described the suspects as two men aged 38 and 39 and two women aged 31 and 40 from the Paris region.

Her statement didn't say what role they're suspected of having played in the Oct. 19 theft. Police can hold them for questioning for 96 hours.

The loot, valued at around $102 million , hasn't been recovered . It includes a diamond-and-emerald necklace Napoleon gave to Empress Marie-Louise, jewels tied to 19th-century Queens Marie-Amélie and Hortense, and Empress Eugénie's pearl-and-diamond tiara.

The thieves dropped a diam

See Full Page