Truck attacker plows into French crowd, kills 84 celebrating Bastille Day

The attacker, identified by a police source as a 31-year-old Tunisian-born Frenchman, also opened fire before police shot him dead. He had been known to the police for common crimes but not to the intelligence services, the source said.

Interior Minister Bernard Cazeneuve said 18 of the injured were in a critical condition after the 25-tonne truck zigzagged along the seafront Promenade des Anglais as a fireworks display marking the French national day ended just after 10:30 p.m. (04:30 p.m. EDT).

The attack, which came eight months and a day after Islamic State gunmen and suicide bombers struck Paris on a festive Friday evening, seemed so far to be the work of a lone assailant.

Hollande said in a pre-dawn address that he was calling up military and police reservists to relieve forces worn out by a state of emergency begun after the militant group killed 130 people in the French capital in November.

Only hours earlier Hollande had announced the state of emergency would be lifted by the end of July, but the president said that following the attack, in which several children were killed, it would now be extended by a further three months.

"France is filled with sadness by this new tragedy," he said. "There's no denying the terrorist nature of this attack of yet again the most extreme form of violence."

Officials said hundreds were hurt as the driver wove along the seafront, knocking them down "like skittles". A local government official said weapons and grenades were found inside the unmarked articulated truck.

Dawn broke on Friday with the pavements smeared by dried blood, while smashed children's strollers, an uneaten baguette and other debris were strewn about the Mediterranean seaside promenade. Small areas were screened off at regular intervals. What appeared to be bodies covered in blankets were visible through the gaps.

The scene appeared to confirm what one city official said during the night - that the truck drove a full 2 km (1.5 miles)along the promenade after mounting the kerb.

The truck, a rental vehicle according to local officials, was still where it came to rest, its windscreen riddled with bullets.

Hollande called the tragedy on the day that France marks the 1789 revolutionary storming of the Bastille prison in Paris an attack on liberty by fanatics who despised human rights.

France would, nonetheless, continue its air operations against Islamic States in Syria and Iraq.

Police were trying to establish whether the driver might have had any accomplices in a city with a reputation for Islamist activism. There had been no claim of responsibility on Friday morning.

German Chancellor Angela Merkel condemned what she called an act of mass murder. "Germany stands at France's side in the fight against terrorism, united with many, many others. I am convinced that, despite all the difficulties, we shall win this fight," she said at a summit meeting in Mongolia.

"A SCENE OF HORROR"

The truck careered into families and friends listening to an orchestra or strolling above the beach toward the grand, century-old Hotel Negresco.

"It's a scene of horror," member of parliament Eric Ciotti told France Info radio, saying the truck "mowed down several hundred people". Jacques, who runs Le Queenie restaurant on the seafront, told the station: "People went down like ninepins."

Bystander Franck Sidoli, who was visibly shocked, said: "I saw people go down."

"Then the truck stopped, we were just five meters away. A woman was there, she lost her son. Her son was on the ground, bleeding," he told Reuters at the scene.

Major events in France have been guarded by troops and armed police since the Islamic State attacks last year, but it appeared to have taken many minutes to halt the progress of the truck as it tore along pavements and a pedestrian zone.

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