The Louvre, home to the Mona Lisa and other iconic works of art in Paris, closed abruptly Monday as the museum's staff staged an impromptu strike over large crowds of tourists and understaffing.

The Louvre, the world's most visited museum, was closed for a few hours on June 16 after an impromptu staff strike.

A spontaneous strike at the Louvre erupted during a routine internal meeting, as gallery attendants, ticket agents and ...