About 70,000 police and gendarmes were deployed across the country after French Interior Minister Laurent Nuñez warned of a "very high risk" of disorder, especially after dark on Halloween.
Clashes erupted in Paris as a mass march drew to a close Saturday, with more than 400,000 people rallying across France over school funding and soaring living costs in a fresh challenge to President Emmanuel Macron. Police made nearly 1,000 arrests, the government said.