While the number of overnight arrests was the highest yet, there were fewer fires, cars burned and police stations attacked around France than the previous night, according to the Interior Ministry. Interior Minister Gerald Darmanin said the violence was of "much less intensity."
Hundreds of police and firefighters have been injured, including 79 overnight, but authorities have not released injury tallies for protesters.
Nanterre Mayor Patrick Jarry said France needs to "push for changes" in disadvantaged neighborhoods.
Despite repeated government appeals for calm and stiffer policing, Friday saw brazen daylight violence, too. An Apple store was looted in the eastern city of Strasbourg, where police fired tear gas, and the windows of a fast-food outlet were smashed in a Paris-area shopping mall, where officers repelled people trying to break into a shuttered store, authorities said.
In the face of the escalating crisis that hundreds of arrests and massive police deployments have failed to quell, Macron held off on declaring a state of emergency, an option that was used in similar circumstances in 2005.
Instead, his government ratcheted up its law enforcement response, with 45,000 police deployed overnight. Some were called back from vacation.
Darmanin ordered a nationwide nighttime shutdown Friday of all public buses and trams, which have been among rioters' targets. He also said he warned social networks not to allow themselves to be used as channels for calls to violence.
"They were very cooperative," Darmanin said, adding that French authorities were providing the platforms with information in hopes of cooperation identifying people inciting violence.
"We will pursue every person who uses these social networks to commit violent acts," he said.
Macron, too, zeroed in on social media platforms that have relayed dramatic images of vandalism and cars and buildings being torched. Singling out Snapchat and TikTok, he said they were being used to organize unrest and served as conduits for copycat violence.
The violence comes just over a year before Paris and other French cities are due to host 10,500 Olympians and millions of visitors for the summer Olympic Games. Organizers said they are closely monitoring the situation as preparations for the Olympics continue.
The police officer accused of killing Nahel was handed a preliminary charge of voluntary homicide. Preliminary charges mean investigating magistrates strongly suspect wrongdoing but need to investigate more before sending a case to trial. Nanterre prosecutor Pascal Prache said his initial investigation led him to conclude that the officer's use of his weapon wasn't legally justified.
Nahel's mother, identified as Mounia M., told France 5 television that she was angry at the officer but not at the police in general. "He saw a little Arab-looking kid, he wanted to take his life," she said.
"A police officer cannot take his gun and fire at our children, take our children's lives," she said. The family has roots in Algeria.
Stay informed. Subscribe to our newsletter
Race was a taboo topic for decades in France, which is officially committed to a doctrine of colorblind universalism. In the wake of Nahel's killing, French anti-racism activists renewed complaints about police behavior.
Thirteen people who didn't comply with traffic stops were fatally shot by French police last year. This year, another three people, including Nahel, died under similar circumstances. The deaths have prompted demands for more accountability in France, which also saw racial justice protests after George Floyd's killing by police in Minnesota.
This week's protests echoed the three weeks of rioting in 2005 that followed the deaths of 15-year-old Bouna Traore and 17-year-old Zyed Benna, who were electrocuted while hiding from police in a power substation in Clichy-sous-Bois.