Nice attack

More than 80 people died when Mohamed Lahouaiej Bouhlel plowed a 20-ton truck into crowds on the Promenade des Anglais seafront in Nice during a fireworks celebration on France's key national holiday.

Ten children were among the victims of the ISIS-inspired attack. More than 200 people were injured.

"I wish to share in your pain, a pain that is even greater when I think of the children, or indeed entire families, whose life was taken from them suddenly and so dramatically," Francis said.

Earlier this week, Sonia Kruger had told Today that after the Nice attack she would feel safer if the borders were closed to Muslims for a while.

She later said on Twitter she was concerned "as a mother" and that there should be open discussion of the issue.

The hashtag #asamother has since been trending in Australia, with many accusing her of racism.

Hecklers shouted out "murderer" and "resign" at him before the minute's silence, held across the nation.

Earlier, centre-right opposition leader Nicolas Sarkozy accused the government of failing to provide security.

Troops are to be redeployed to tourist spots as inquiries continue into the killer's possible links to jihadists.

Mr Sarkozy, a former president, called for any foreign nationals with links to radical Islam to be expelled from France.

"I know that we shouldn't fight or tear each other up while the victims haven't been buried yet," he told French TV.

"But I want to say that everything that should have been done over the past 18 months was not done."

Mr Sarkozy wants all those who he described as at risk of radicalisation, to be given an electronic bracelet or put under house arrest.

While not everyone agrees with the former president's prescription, many believe more should have been done to prevent further acts of terror in France.

The reports say Mohamed Lahouaiej-Bouhlel drove through the seafront promenade area of the French city on Tuesday and Wednesday in preparation.

More than 80 people died when he ploughed his vehicle into people celebrating Bastille Day on Thursday.

Six people are being held in connection with the killings.

The latest, an Albanian couple who have not been identified, were arrested on Sunday morning, French judicial sources said.

Lahouaiej-Bouhlel was shot dead by police when his vehicle's path along the Promenade des Anglais was eventually halted.

More than 80 people died when a Tunisian man, Mohamed Lahouaiej-Bouhlel, ploughed the vehicle into celebrating crowds on Thursday evening.

Earlier, France called up 12,000 police reservists to help boost security in the wake of the attack.

Interior Minister Bernard Cazeneuve also appealed to "all willing French patriots" to sign up as reservists, to help protect the country's borders.

Mohamed Lahouaiej-Bouhlel drove a lorry along the seafront through crowds before police shot him dead.

So-called Islamic State claimed one of its followers carried out the attack.

A news agency linked to the group, Amaq Agency, said: "He did the attack in response to calls to target the citizens of the coalition that is fighting the Islamic State."

"The person who carried out the operation in Nice, France, to run down people was one of the soldiers of Islamic State," the news agency Amaq, which supports the militant Islamist group, said via its Telegram account.

"He carried out the operation in response to calls to target nationals of states that are part of the coalition fighting Islamic State."

Mr Hollande, who says the attack was a terrorist act, has already extended a state of emergency by three months.

On Thursday, a lorry driver ploughed through a crowd marking Bastille Day on Nice's Promenade des Anglais.

The driver was later shot dead by police. He was identified as Tunisian Mohamed Lahouaiej-Bouhlel, 31.

Prosecutors said he had driven the lorry 2km (1.2 miles) along the famous promenade, zigzagging and targeting people.

Ten of the dead were children. Some 202 people were injured; 52 are critical, of whom 25 are on life support.

The Twitter account of the French government posted a message, appealing to people to share only reliable information from official sources.

It comes after false information and pictures were circulated on the internet as the situation in Nice was unfolding.

Fake: Eiffel Tower attack

Pictures and tweets of a fire around the Eiffel tower also began circulating, suggesting a co-ordinated double attack, but again the information was false.