In Lyon, the protest turned violent as several stores were damaged and police officers were pelted with objects. The police responded with tear gas. Organizers estimated that 18,000 people participated in the demonstration.
In Paris, the seventh round of protests against the pension reforms also turned violent, with clashes between demonstrators and police officers.
Footage shows thousands of people marching with signs and flags.
The proposed reforms would increase the retirement age from 62 to 64 by 2030, prompting a large-scale strike in France since January.
