Louvre staff shut the Paris museum on Monday, protesting poor working conditions and other complaints.
The strike followed months of tension and comes after a high-profile jewellery heist in October.
Union leaders said 400 employees voted unanimously to walk out, though they have not confirmed a multi-day stoppage.
Striking workers blocked the museum’s glass pyramid entrance with banners, flags, and placards.
The Louvre posted an online notice confirming an exceptional closure and promised ticket refunds.
The museum normally closes on Tuesdays, giving staff time to meet Wednesday.
Employees may decide whether to return or extend the strike.
Visitors expressed frustration, including Lindsey Hall from Sacramento, California, who had eagerly planned a visit.
She described the Louvre’s collection as “epic” and “a life experience every human should see.”
Hall said she understood the pressures staff face working in crowded conditions every day.
Security fears and staffing shortages fuel unrest
Last week’s talks with Culture Minister Rachida Dati failed to resolve staffing and funding concerns.
CFDT union leader Alexis Fritche said visiting the museum has become “an obstacle course.”
The October jewellery heist highlighted security gaps, thin staffing, and dangerous conditions for employees.
Police later arrested four suspects accused of stealing €88 million in crown jewels.
Investigators blamed broken cameras, outdated equipment, understaffed control rooms, and poor coordination for the thieves’ quick escape.
Unions demand reforms, government acts
The CFDT wants more security staff, better visitor experiences, and long-term, stable budgets for the museum.
CGT official Yvan Navarro said visitor numbers and prices rise while staff numbers and salaries stagnate.
Unions warned the Louvre is in “crisis,” with deteriorating working conditions and insufficient resources.
The Culture Ministry appointed Philippe Jost to propose a major reorganisation of the Louvre.
Jost will work with director Laurence des Cars and submit recommendations by the end of February.
Des Cars previously called the heist a “terrible failure” and supports reforms to improve safety and operations.
