Belgian police arrest 16 in raids after Paris attacks
Suspected Paris gunman Salah Abdeslam is still at large
Brussels begins another day of lockdown on highest level of alert
UK Prime Minister David Cameron arrives in Paris for talks on the fight against IS
French aircraft carrier Charles de Gaulle arrives in eastern Mediterranean
All times GMT
Universities and further eduction colleges in Brussels will also be closed on Monday along with the city's schools, the Belgian PM Michel said.
Creches are not included in the measures, he said.
The authorities are doing all they could to restore normal life to the city, he added.
"The threat remains serious and imminent in Brussels," Prime Minister Michel said.
He accepted the government's decisions would "complicate economic and work life" but said it had to "assume its responsibilities".
French police are appealing for help in identifying the man they say was the third attacker who died at the Stade de France.
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Mr Michel says the rest of the country will remain on a slightly lower level of alert - 3/4.
The metro system for the Belgian capital will remain shut on Monday - Belgian PM.
Schools in Brussels will be closed on Monday - Belgian PM.
Belgian Prime Minister Charles Michel has just announced that the alert in the capital will remain at the highest level - 4/4 - for now. He is still addressing reporters.
The BBC's James Reynolds has the latest from Brussels...
Quote MessageThe public squares of Belgium's capital city are largely empty. Most people in Brussels have obeyed their government's instruction to stay away from crowds.
Quote MessageSome have gone to smaller shops and cafes. A regular Sunday outing has now become a small act of defiance against fear.
Quote MessageLife may only return to normal once the police catch the plotters they're looking for.
Image source, AFP/GettyThe Paris attacks investigation
Among the most immediate issues facing investigators are
The Paris attacks suspects
Freelance cycling journalist Paul Maunder has been at the World Cup cyclo-cross race in West Flanders, Belgium, which has gone ahead with an increased security presence. He writes:
"This winter branch of cycle racing is hugely popular in Belgium. Crowds of up to 40,000 pay to see their idols race through mud, sand and snow. The course here runs through a military base which also uses its barracks to house Syrian refugees.
"Before the race there were rumours that the American team were not being allowed to ride by their embassy. But the Americans are all here, the lager is flowing and the Belgian crowd is as enthusiastic as ever. Their hero Sven Nys has just won, so there is a great deal of singing to his honour as they leave the venue past the row of armed policemen."
Image source, Paul Maunder
Image source, Paul MaunderBelgium's prime minister will hold a news conference at 1800 GMT (1900 local time)
French police commandos fired 5,000 bullets in Wednesday's raid on an apartment building in the Parisian suburb of Saint Denis, where the suspected ringleader of the Paris attacks was staying. There were also explosions.
These pictures from inside the building show the ferocity of the fire exchanges between the police and suspects inside.
Image source, ITV News via AP
Image source, ITV News via AP
Image source, ITV News via AP
Image source, ITV News via AP
Image source, ITV News via APImages from Brussels as alert continues
Few people have been venturing out in the Belgian capital as security forces patrol the streets and squares.
Image source, APA view of the deserted square in front of the Atomium, a Brussels landmark
Image source, AFPIt's decked out for the festive season but the iconic Grand Place has been virtually empty, correspondents say
Image source, APMetro lines are shut as part of the lock-down
Image source, EPATroops were deployed as the city's official alert level was raised to it's highest level
Image source, AFPSalah Abdeslam remains on the run. His brother Brahim blew himself up in the Paris attacks. What is known of the two brothers? Read more here for details of the men who were said to enjoy drinking, smoking and good clothes, and did not appear to be fanatics.
Image source, APFloral tributes have grown outside Le Petit Cambodge restaurant in Paris. More than 100 shots were fired at the venue on the night of 13 November, leaving 15 people dead and 15 severely injured.
I am an American graduate student living in Brussels. Yesterday I stayed at my house just to avoid any risk. Today, as I was walking to the local supermarket on Rue Royal, a main street in Brussels, I felt ready to run at any moment.
I made eye contact with many people that passed me on the street. I couldn't help but think that many war-torn regions of the world go through a constant anxiety like this every day for years.
William Alston
The Guardian's Jason Burke - author of several books on Islamic militancy - says recent attacks have succeeded in creating a climate of fear, external.
The current cycle of militancy "could last for decades", he writes, but the balance of power will shift between the jihadists and the authorities.
Quote MessageAt the moment there is a tactical stalemate in Syria and Iraq. Isis is able to endure, if not expand.
Quote MessageThe gap that has opened up between the threat posed by Western Isis volunteers and the resources devoted to countering the threat they pose has made Western nations vulnerable.
Quote MessageAll this is likely to change in coming years and we can be reasonably confident that the balance of power will swing away again from the extremists, as in previous cycles.
You can see a clip of the interview with Salah Abdeslam's brother Mohamed here, as he appeals for him to hand himself in.
If Salah Abdeslam really did decide against blowing himself up in Paris then he has become a target for the so-called Islamic State as well as for the European authorities, his brother Mohamed Abdeslam's lawyer Nathalie Gallant has told BFMTV.
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Image source, RBTFThe Belgian broadcaster RBTF has been speaking with Mohamed Abdeslam - brother of Salah, now the subject of a manhunt, and Brahim, who blew himself up in the Paris attacks.
Mohamed said there had been a slight change in their behaviour about six months ago, but the family did not see it as a cause for alarm.
Quote MessageWhen your brother begins to pray, it's not automatically a radicalistic change. When your brother tells you he stopped drinking, it's not a radicalistic change… For us, these men just wanted to calm down and to show more respect in their practice of religion.
Mohamed said his brothers had been manipulated rather than radicalised - "that's the reason we didn't notice anything" - and said Salah must have had second thoughts during the attack.
Quote MessageIt's more than my hope, it's my belief. Salah is a very clever man. I think that, at the very last moment, Salah decided to move back. Maybe he saw or heard something that he didn't expect. And he decided not to see the plan through.
Mohamed - who was living with his brothers before the Paris attacks - was initially taken into custody but later released. He repeated his call for Salah to turn himself in, saying his family and the families of the victims needed answers.