Workers install iron window guards on the window of the Galerie d'Apollon of the Louvre Museum, on the Quai Francois Mitterrand side, in Paris on December 23, 2025. DIMITAR DILKOFF / AFP

The Louvre Museum on Tuesday, December 23, installed metal bars over the windows of the Galerie d'Apollon, where thieves broke into the Paris landmark to make off with crown jewels in a recent daylight robbery.

"This is one of the emergency measures decided after the theft," the museum's Deputy Administrator Francis Steinbock told Agence France-Presse (AFP).

Early in the morning, workers on the gallery balcony helped position a large grille hoisted by a crane to secure it to the gallery's tall French door windows.

"We had committed to doing it before the end of the year," Steinbock said, adding that discussions were ongoing regarding "securing the other windows."