Thieves used a basket lift to break into the Louvre on Sunday morning, forced a window, smashed display cases and escaped with jewels of "inestimable value," France’s interior minister said, as the world’s most visited museum closed for the day during the investigation.

"A robbery took place this morning at the Louvre Museum," Culture Minister Rachida Dati wrote on X. The museum cited "exceptional reasons" for the closure. No injuries were reported.

The Interior Ministry said that around 9.30am, several intruders forced open a window, stole jewels from vitrines and fled on two-wheelers. The ministry said forensic work is underway and a precise inventory of the stolen objects is being compiled, adding that the items have "inestimable" historical and patrimonial value. Dati and Interior Minister Laurent Nunez were on site with museum leadership.

Police sealed off the museum and evacuated visitors. New arrivals were turned away and nearby streets were closed, according to the Interior Ministry.

The Louvre has a long history of thefts and attempted robberies. The most famous was in 1911, when the Mona Lisa vanished from its frame, stolen by Vincenzo Peruggia, a former worker who hid inside the museum and walked out with the painting under his coat.

It was recovered two years later in Florence -- an episode that helped make Leonardo da Vinci’s portrait the world’s best-known artwork.

Home to more than 33,000 works spanning antiquities, sculpture and painting -- from Mesopotamia, Egypt and the classical world to European masters -- the Louvre’s star attractions include the Mona Lisa, the Venus de Milo and the Winged Victory of Samothrace.

The Galerie d’Apollon displays a selection of the French Crown Jewels. The museum can draw up to 30,000 visitors a day. (AP)