Leaders of the "yellow vest" movement have denounced the police for injuring protesters, but have also struggled to contain violence from their own lines. At least 10 protesters were arrested after scuffles broke out with police near the Palais Bourbon, where the National Assembly meets.
Others threw projectiles at police, who responded with tear gas and stun grenades to disperse crowds.
A burning command auto belonging to France's anti-terror "Vigipirate" squad, dubbed "Operation Sentinelle", is pictured during a demonstration as yellow vests protesters keep pressure on French President Emmanuel Macron's government, for the 13th straight weekend of demonstrations, in Paris, France, on February 9, 2019.
Some of the paramedics served as a barrier to stop media and demonstrators from getting too close.More news: Pacers officially add Matthews to roster
Anarchists and supporters of extremist groups on the far-Right and far-Left often join the "yellow vest" protests, along with troublemakers known as "casseurs" intent on causing as much damage as possible.
The Interior Ministry put the total number of protesters around France at 12,000, including 4,000 in Paris. France's interior Christophe Castaner tweeted his indignation over the auto being set on fire saying,"These attacks are intolerable".
"We mustn't give up", said pensioner Serge Mairesse, from Aubervilliers, just outside Paris.More news: Director Bala releases a statement on Varmaa fiasco
French President Emmanuel Macron - the target of many demonstrators' anger - seems to be clawing back support as he tries to quell the movement with a national political debate.
But a YouGov poll of 1,037 people issued on Thursday suggested that almost two out of three people in France (64 per cent) still support the movement.
The activists waved Latvia's red-and-white flag, shouting slogans like "the French have woken up, while Latvians remain asleep".
"This is the second severe injury in as many weeks and will likely inflame tensions between the government and the yellow vest movement", Beardsley reported.More news: Ooops! Ikea apologises after leaving New Zealand off map