PARIS — Visitors were turned away from the Louvre on Friday after strikers protesting the French government’s planned pension overhaul blocked entrances to the museum, leaving tourists from around the world befuddled and frustrated.

The Louvre — the world’s most visited museum — was the latest target in the 44-day standoff between the government of President Emmanuel Macron and the labor unions opposed to him, with strikes that have caught commuters, business people and tourists in the middle.

About 100 protesters prevented visitors from entering the museum, including through the famed glass pyramid that sits in the Louvre’s central courtyard, where they waved union placards and chanted slogans against President Emmanuel Macron as tourists looked on glumly.

“Closing the Louvre to prevent tourists from visiting is very important because it’s the most visited museum in the world,” said Christophe Benoit, 52, a protesting employee of France’s Culture Ministry, although he acknowledged that some visitors were “very angry.”