A suspect linked to a far-left movement has been arrested in France after a 19th Century city hall was gutted by a fire over the weekend that broke out during mass disorder, French media report.
The clock tower and parts of the roof of the ornate city hall in the central city of Limoges were engulfed in flames before collapsing on Saturday.
The 34-year-old suspect is known to police for acts of violence against public officials and is on a French national security watchlist, FranceInfo and BFM TV report.
French Prime Minister Sébastien Lecornu has vowed a "massive" police presence during further protests planned for Saturday, while young people in Marseille will be subject to curfews for most of this week.
The city's mayor Benoît Payan said on X that the prefect had decided to introduce the curfew "starting this evening and for days to come", with French media reporting it would be in place overnight from Tuesday to Friday.
Payan said the measures apply to minors and will only be in commercial areas of the city, which were particularly affected by looting which took place last weekend.
Paris's police commissioner has also ordered the extension of an overnight curfew in the capital. The Préfecture de Police said the measure would continue "for as long as it proves necessary".
A curfew for parts of central Lyon, in France's south-east, has also been renewed.
French Justice Minister Gérald Darmanin told BFM Television that 149 people were in detention following widespread demonstrations over the weekend.
Hundreds of thousands of demonstrators took to the streets to protest against rising fuel prices, the cost of living and deteriorating public services, including schools.
Darmanin previously said he asked prosecutors to be "extremely firm" and "ruthless towards those who attacked police officers, gendarmes and firefighters, who looted shops and who attacked public buildings".
Lecornu told French parliament on Tuesday afternoon a large number of police would meet demonstrators at a planned protest on Saturday.
Interior Minister Laurent Nuñez previously admitted police had "lost control" in some cities over the weekend.
He was strongly criticised by opposition politicians over authorities' preparedness for the disorder, leading him to offer his resignation on Monday, which was rejected by President Emmanuel Macron.
Lecornu also accused far-left groups of an "insurrectionary" plan over the weekend's mass chaos.
Responding to an earlier, similar accusation from Lecornu, left-wing La France Insoumise (LFI) de facto leader Jean-Luc Mélenchon had called for the prime minister to "prove his accusation" or "apologise, shut up, and stop stoking disorder".
On Tuesday, Mélenchon urged followers on social media to show "restraint" in the face of any "provocation".
Lecornu earlier said targeted curfews introduced across France on Monday contributed to a quiet night following the disorder.
Curfews were introduced across parts of central Paris, including Place de la République, where protesters had gathered over the weekend, and the Les Halles shopping area.
Other measures restricting the movement of young people and gatherings were introduced on Monday in cities such as Marseille, Bordeaux, Nice and Lyon in the south, as well as Lille and other towns in the north.
A crowd assembled in Lyon on Monday night in support of businesses affected by the disorder but dispersed without violating the curfew, officials said.
The Rhône prefecture said on social media that it was "furious" that a far-right group tried to hijack the gathering. The prefecture said on X it reported the group to the public prosecutor for alleged Islamophobic and xenophobic remarks.