Thousands gather on Monday on the Jardin Albert and the Promenade des Anglais in Nice to observe a minute of silence for victims of the deadly attack.(AFP/Getty Images)
The crowd applauds police officers and rescue teams after a minute of silence on the famed Promenade des Anglais in Nice.(Francois Mori / Associated Press)
Ghassan Zaour watches people gathered around a makeshift memorial after observing a minute of silence to honor the victims of deadly attack on the Promenade des Anglais in Nice.(Luca Bruno / Associated Press)
People observe a minute of silence on the famed Promenade des Anglais in Nice, to honor the victims of the attack.(Francois Mori / Associated Press)
People gather in front of a wall of flowers laid on the Promenade des Anglais in Nice, France, where the truck crashed into the crowd during Bastille Day celebrations.(Ian Langsdon / European Pressphoto Agency)
A man scans notices of people missing after a man drove a truck into a packed crowd of people celebrating Bastille Day in Nice.(Boris Horvat / AFP/Getty Images)
A woman reacts after learning of the death of a relative at a Nice hospital.(Claude Paris / Associated Press)
A woman walks alone on a deserted beach beside the Promenade des Anglais on July 6, 2016, in Nice, where the truck crashed into the crowd during the Bastille Day celebrations.(Ian Langsdon / EPA)
People hug outside Pasteur Hospital in Nice after the July 14 truck attack that killed 84 people.(Anne-Christine Poujoulat / AFP/Getty Images)
The Eiffel Tower in Paris is illuminated in the colors of the French flag in solidarity with the victims of the terror attack in Nice.(Christophe Petit Tesson / EPA)
A woman sits under French flags lowered at half-mast in Nice, following the deadly Bastille Day attacks.(GIUSEPPE CACACE / AFP/Getty Images)
Police secure the area where a truck drove into a crowd during Bastille Day celebrations, killing scores of people in Nice, France.(Andreas Gebert / EPA)
A forensic expert examines dead bodies covered with a blue sheet on the Promenade des Anglais seafront in Nice, a day after a gunman smashed a truck into a crowd of revellers celebrating Bastille Day.(Boris Horvat / AFP/Getty Images)
People react near the scene where a truck drove through revelers in Nice, France.(Francois Mori / Associated Press)
Crime scene investigators work on the Promenade des Anglais after the truck crashed into the crowd during the Bastille Day celebrations in Nice, France.(Olivier Anrigo / EPA)
People gather in front of the memorial set on the Promenade des Anglais where the truck crashed into the crowd during the Bastille Day celebrations in Nice, France.(Ian Langsdon / EPA)
A man holding the French national flag stands near the site of the truck attack in the French resort city of Nice, France.(Luca Bruno / Associated Press)
Flowers placed near the site of the deadly attack on the Promenade des Anglais seafront in the French Riviera city of Nice.(Valery Hache / AFP/Getty Images)
Floral tributes are placed near the site of the truck attack in the French resort city of Nice.(Luca Bruno / Associated Press)
Riot police officers and gendarmes are seen Friday outside the Pasteur Hospital in Nice, France.(Claude Paris / Associated Press)
Police researchers inspect the cab of the truck that crashed into Bastille Day revelers in Nice, France.(Alberto Estevez / EPA)
Roses are attached to a barrier near the scene of the truck attack in Nice.(Francois Mori / Associated Press)
An image grab from the Twitter account of harp_detectives shows people fleeing the scene of the truck attack Thursday in Nice, France.
An image grab from the Instagram account of GA Morrow shows people fleeing the scene of the truck attack in Nice, France.
The truck that plowed through Bastille Day revelers, its windshield riddled with bullets, is examined by forensics officers in Nice, France.(Claude Paris / Associated Press)
Emergency workers tend to a woman injured in the truck attack.
(Olivier Anrigo / EPA)
French President Francois Hollande addresses the nation after the tragedy in Nice.(Associated Press )
Bodies lie on the Promenade des Anglais in Nice after a truck sped into a crowd during Bastille Day celebrations in the southern French city.(Cyril Dodergny / TNS)
Soldiers, police officers and firefighters walk amid bodies covered with blue sheets along the Nice seafront.(Valery Hache / AFP/Getty Images)
A body lies on the ground after the Nice attack.
(Valery Hache / AFP/Getty Images)
People gather near the scene of the attack.
(Valery Hache / AFP/Getty Images)
Police officers and rescue workers stand near a truck that plowed into a crowd of people leaving a fireworks display in the French Riviera town of Nice on Bastille Day. Dozens of revelers were killed.(Valery Hache / AFP/Getty Images)
Ambulances line up near the scene of the attack.(Claude Paris / Associated Press)
A soldier stands guard alongside police officers near the site of the truck attack.
(Ciaran Fahey / Associated Press)
Residents walk with their hands up as police conduct checks.(Valery Hache / AFP/Getty Images)
In this video still, a police officer directs people from a cordoned-off area after a truck plowed through a crowd of Bastille Day revelers.(Associated Press)
Police officers inspect a vehicle after the truck attack in Nice.
(Valery Hache / AFP/Getty Images)
French police arrested two more suspects Sunday in connection with a truck attack that killed 84 people in this southern French resort, amid new reports that the 31-year-old assailant sent a mysterious text message asking for “more weapons” just before the rampage.
French prosecutors in Paris said the arrests of a man and woman in Nice raised to seven the number of people detained and questioned after Mohamed Lahouaiej Bouhlel drove a 19-ton truck at high speed through a crowd along the city’s packed seaside promenade.
After zigzagging along the road and sidewalk in an apparent effort to run over as many people as possible, he eventually was shot to death by police.
Authorities at first believed Bouhlel, a deliveryman and father of three who was not on any terrorist watch lists, probably was acting alone.
But French Prime Minister Manuel Valls suggested Sunday that the driver might have had accomplices. He said investigators piecing together the events leading up to the attack think Bouhlel recently may have become radicalized with jihadist ideology.
Those who knew him have said he was not particularly religious. Ignoring Muslim codes of conduct, he was known to drink and smoke marijuana, did not attend mosque and often wore shorts.
“We now know that the killer was radicalized very quickly,” Valls told the newspaper Journal du Dimanche on Sunday. Interior Minister Bernard Cazeneuve said Bouhlel began attending a mosque in April.
Islamic State issued an indirect claim of responsibility for the attack two days later, on Saturday, saying Bouhlel was a “soldier,” though French officials have not established any direct connection between him and the militant group.
Investigators examining the records of Bouhlel’s cellphone, which was found in the cabin of the truck he was driving, have found evidence that he may have had contact with known Islamic radicals in his neighborhood in Nice. According to French TV station BMF, they also found a cryptic text message — sent just minutes before he plowed the truck into the crowd — that read, “Bring more weapons, bring five of them to C.”
Police studying closed-circuit TV images in Nice also have spotted Bouhlel at the seafront Promenade des Anglais twice in the two days before Thursday’s attack, according to a report by Europe1 radio. He was seen driving through the area, the radio station said, presumably to case the broad palm tree-lined boulevard.
Cazeneuve has rejected criticism that police were poorly prepared for such an attack, though only 60 officers were on duty to protect the crowd of 30,000 on the night of the killings. He said the attacker had evaded police patrol cars blocking access to the boulevard by driving the truck onto the sidewalk.
Videos of the attack show people joyously celebrating the national holiday on the closed-off boulevard and the adjoining promenade, oblivious to the imminent danger before the white truck begins barreling through the crowd at a relatively high speed, swerving back and forth as it runs over groups of revelers.
The promenade and adjoining beaches were reopened Saturday, creating an incongruous atmosphere with beachgoers frolicking in the turquoise waters of the Mediterranean and mourners paying silent tribute to the victims on the nearby promenade. Thousands, many in tears, gathered around dozens of piles of flowers, cards and candles marking the spots along the roadway where many of the victims were killed.
“I want to call on all French patriots who wish to do so to join this operational reserve,” he said.
Valls said he feared terrorism would continue to beset France for a long time. “The terrorism threat will be a fundamental and enduring problem, and other lives will be wrecked,” he said.
Kirschbaum is a special correspondent.