PARIS (AP) – A French yellow vest protester’s hand was ripped apart Saturday during violent clashes in Paris as demonstrators tried to storm the French National Assembly in a 13th consecutive week of unrest. (Warning: article contains graphic tweet.)

Police said the injured protester lost four fingers as police swooped in to stop protesters from breaching the parliament’s exterior. Police could not confirm French media reports that the demonstrator’s hand was blown up by a grenade used to disperse unruly crowds.

As scuffles broke out in front of the National Assembly and French police responded with tear gas, paramedics huddled around the injured protester at the National Assembly gates, providing emergency treatment and stopping bystanders from getting too close.

GRAPHIC: It's #ActeXIII of the #YellowVest protests in France today and another protester has had their hand blown off. Screenshot captured by @AramShabanian from a live stream. pic.twitter.com/kBFcKYTcg8 — Jake Hanrahan (@Jake_Hanrahan) February 9, 2019

Police used batons and fired tear gas in Paris to disperse demonstrators, some of whom threw debris at riot police hunkered down.

Fire department spokesman Gildas Lecoeur told The Associated Press that the injured man was taken to a hospital, but he couldn’t confirm his current condition.

A car, motorbikes and multiple trash bins were set ablaze as the protest moved toward the city’s Invalides monument but France’s Interior Ministry said this week’s protest was significantly smaller than last week’s.

Police said 21 demonstrators had been arrested as scuffles broke out between protesters and police near the Champs-Elysees Avenue and the National Assembly. The protest march is due to end up near the Eiffel Tower.

Earlier Saturday, activists in Latvia staged a picket in front of the French embassy in Riga, the capital of the small Baltic EU country, to support the yellow vest movement and urge Latvians to demand higher living standards.

The activists waved Latvia’s red-and-white flag, shouting slogans like “the French have woken up, while Latvians remain asleep.”

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Jari Tanner in Helsinki contributed to this report.