In other news relating to recent IS militant attacks, Russia's FSB security service says traces of explosives have been found in the debris of a Russian airliner flying from Sharm el-Sheikh to Russia, Reuters reports. 

President Putin has ordered special services to focus on finding those responsible for "the terrorist act", it says. 

All 224 people on the airliner were killed when it crashed on 31 October. 

A remembrance service was held in Civic Square in Wellington on Tuesday for the victims of the Paris attacks. French Ambassador Florence Jeanblanc-Risler spoke at the service and joined those gathered in lighting a candle. 

Image source, AFP

By claiming devastating attacks on French and Russian targets in recent days, the Islamic State group has embraced what appears to be an irrational strategy, The Washington Pos, externalt says. 

It has angered and provoked two military powers that had been reluctant to engage in an all-out war with the self-declared caliphate in Iraq and Syria, the newspaper says.  

It adds that expanding the conflict may seem like a self-destructive move but to some analysts it is squarely in keeping with what the group advertises as its "overriding, apocalyptic mission - to lure the world’s unbelievers into Syria for a final, Armageddon-like battle".  

Bob Madou, spokesman for the Belgian football association, tells Belgian TV, external of his disappointment that the friendly match between his country and Spain has been cancelled. 

“I don’t know why the decision was taken so late," Mr Madou said. "We’re surprised because it seemed perfectly possible to organise the match. It is certainly a risk factor that one of the brothers behind the attacks in Paris hasn’t yet been arrested.”

French Prime Minister Manuel Valls says intelligence services have identified 10,500 people in France as radicalised.

He also tells French TV that parliament will vote on Wednesday on whether to extend France's state of emergency by three months. He will hold meetings with mayors from across France on Tuesday.

The UK government is promising more money to fight terrorism on two fronts. Chancellor George Osborne will announce later that funding for cyber security will double to almost £2bn a year by 2020. 

Prime Minister David Cameron said in a speech on Monday night that the UK must be "realistic and hard-headed" about the threat in the wake of the attacks in Paris. In a speech to the Lord Mayor of London's Banquet, he said the victims would not be forgotten.

Image source, Getty Images

There is still an intense focus on finding Salah Abdeslam, the BBC's Chris Morris reports. The Belgian Interior Ministry issued two more photographs, external on Monday night of the man suspected of being the only survivor from the three groups of gunmen and bombers who attacked Paris on Friday. Police raids in Brussels yesterday turned up nothing, and another big police operation in the French city of Strasbourg ended with no arrests. 

Former French Justice Minister Rachida Dati tells the BBC's Newsnight programme, external that German Chancellor Angela Merkel made "an error of judgement" by allowing so many migrants into Europe. 

"She was generous, but that generosity backfired against European people," Ms Dati said. The former minister also said that 90% of radicalisation in France and the rest of western Europe happened not in mosques but on the internet and in prisons where there are numerous jihadist recruiters.               

Speaking on France Info TV, French Interior Minister Bernard Cazeneuve says there were 128 new raids on militants overnight. Most of the Paris attackers were unknown to the country's security services, he said, adding that during the summer six "attacks of this type" were foiled in France.

US Secretary of State John Kerry is in Paris to demonstrate Washington's support for a key ally following the attacks last week claimed by the Islamic State group. He is due to meet President Francois Hollande. US officials said the main purpose is to express condolences to the French people and to underscore America's strong relationship with France.

Image source, AP

There is an intense search to find one of the attackers - Salah Abdeslam. The Belgian-born 26-year-old has been identified as a key suspect.

Here's what we know about him and the other attackers.

Motorists drive past De La Salle university in the Philippines which is lit with the blue, white and red colours of France"s flag as a tribute for the victims of Paris attack.

Image source, Reuters

Heavy security is expected to be in place for Tuesday night's friendly football match between England and France at Wembley stadium in London. England manager Roy Hodgson has said in light of the events in Paris the game will be "far, far greater than a football match". There will be a number of tributes paid to the victims of the attacks before the game. Prince William is attending. At the same time a game between Belgium and Spain due to be played in Brussels has been called off because of security fears.

Ten French warplanes have conducted new strikes in Syria targeting a command centre and a recruitment centre for fighters of the Islamic State (IS) group in the stronghold of Raqqa, a spokesman for France's military command told Reuters news agency. 

In the wake of the attacks, the UK is to double its investment in cyber security. In a speech at Britain's surveillance agency, GCHQ, Chancellor George Osborne is expected to say that a major online attack by Islamic State militants is a growing threat.

Vigils for the victims have been held around the world. In Mexico City a crowd placed candles and flowers outside the French embassy.

Image source, AFP

The French flag lit up one of California State University buildings on Monday night to honour student Nohemi Gonzalez who was a victim in Friday's attacks.

Image source, AP