France to deploy 10,000 troops

France is mobilising 10,000 troops to boost security after last week's deadly attacks, and will send thousands of police to protect Jewish schools.

Defence Minister Jean-Yves Le Drian said troops would be in place from Tuesday evening in sensitive areas.

It is the first time troops have been deployed within France on such a scale.

Seventeen people were killed in Paris last week in attacks at satirical magazine Charlie Hebdo, on a police officer, and at a kosher supermarket.

On Sunday, an estimated 3.7 million people took to the streets to show solidarity with the victims, including 1.5 million people in Paris.

About 40 world leaders joined the start of the Paris march, linking arms in an act of solidarity.

President Francois Hollande ordered the deployment of troops during a crisis meeting with top officials early on Monday.

Mr Le Drian said the deployment, the first of its kind, was needed because "threats remain present".

Interior Minister Bernard Cazaneuve announced that nearly 5,000 members of the security forces would be sent to protect France's 717 Jewish schools, and that troops would be sent as reinforcements over the next two days.

Prime Minister Manuel Valls said synagogues would also be protected, as would mosques, following some retaliatory attacks over the Charlie Hebdo killings.

Analysis, Hugh Schofield, BBC News, Paris

The security meeting is a chance for President Hollande to be briefed on the latest in the investigation into last week's attacks. New elements include the discovery of a second flat where Coulibaly seems to have stored his weapons.

There will also be preliminary discussion of what - if any - new measures need to be taken in the fight against jihadism. There has been much talk about a possible French Patriot Act - similar to what the US enacted after 9/11.

But there seems little appetite to make major legislative changes. A new anti-terrorist law has only just gone through parliament. Emphasis is more likely to be on improving the means - in manpower and material - available to the intelligence services, and also combating the growing problem of radicalisation in prisons.

Last week, Mr Valls admitted there had been "clear failings" after it emerged that the three gunman involved in the attacks - Said and Cherif Kouachi and Amedy Coulibaly - had a history of extremism.

The Kouachi brothers were on UK and US terror watch lists and Coulibaly had previously been convicted for plotting to free a known militant from prison. Coulibaly met Cherif Kouachi while in jail.

Coulibaly and the two brothers were shot dead on Friday after police ended two separate sieges.

Coulibaly killed four people at a kosher supermarket in eastern Paris on Friday before police stormed the building. He is also believed to have shot dead a policewoman the day before.

Ahead of Sunday's rally in Paris, a video emerged appearing to show Coulibaly pledging allegiance to the Islamic State militant group.

In the video, he said he was working with the Kouachi brothers: "We have split our team into two... to increase the impact of our actions."

The Kouachi brothers claimed they were acting on behalf of Yemeni branch of al-Qaeda (AQAP). But experts say it is highly unlikely that Islamic State and al-Qaeda, rivals in the Middle East, would plan an attack together.