President Barack Obama has tweeted on the campaign against IS and the US's acceptance of Syrian refugees, which has become increasingly politically controversial:

The French Liberation newspaper reports that there have been two raids in Roissy, where Charles de Gaulle airport is located.

One was on the cargo wing of Air France, and another at premises belonging to the Fedex company.

Officials quoted by the newspaper say there was no "direct link" to Friday's attacks.

The BBC's Gavin Lee in Saint-Denis tweets:

In Nigeria, two huge blasts have been heard at a mobile phone market in Kano.

There are no details of casualties yet or the motives for the attack.

Although no-one has said they are responsible for the attack militant Islamist group Boko Haram has previously attacked Kano, as well as many other targets in northern Nigeria.

It comes a day after more than 30 people were killed by a suicide bomber in the north-eastern city of Yola, in an attack blamed on Boko Haram.  

More here. 

The BBC's Christian Fraser is at a vigil for the victims of the attacks in the Brussels suburb of Molenbeek, home to some of the attackers and suspected eighth gunman Salah Abdeslam - now the subject of an international manhunt

The British authorities have published advice on steps to take in the event of an attack like the ones in Paris:

The band Eagles of Death Metal, whose concert at the Bataclan venue was targeted on Friday night, have tweeted this statement after arriving back in the US:

Russian news agencies - quoting a senior representative of the Russian Army's General Staff - are reporting that the country has stepped up all types of intelligence gathering in the Middle East, including satellite reconnaissance. 

This morning's dramatic raid in the Paris suburb Saint-Denis is over, but forensics officers are still searching the apartment that was raided:

Image source, AFP

Following the US saying it had launched further strikes against so-called Islamic State in Iraq and Syria, Reuters quotes the Russian military as saying its bombers have started making strikes on IS's oil infrastructure.

Islamic State media has published a photo of what it says was the bomb which downed the Russian airliner over Egypt on 31 October, killing all 224 people aboard.

We are working to verify the image.

French Health Minister Marisol Touraine has given an update on the latest numbers of people injured after Friday's attacks. She said 195 people remain in hospital, with 41 still in intensive care and three people whose injuries are still life-threatening.

Antoine Leiris's wife Helene was killed in the attacks in Paris on Friday. After her death, he wrote a defiant, widely-shared letter in which he says he will not give her killers the "gift" of his hatred.  

Antoine appeared on the BBC's World at One programme this afternoon to recite his words. 

You can listen here. 

There are reports that the Gare du Nord station has now re-opened after being evacuated earlier this afternoon due to a security alert:

The BBC's Christian Fraser is at a vigil for victims of the Paris attacks in the Brussels suburb of Molenbeek, which authorities have said was home to some of the gunmen involved: 

BBC Monitoring

The Swedish security service SAPO has raised its terror alert from three to four on a five-point scale after the Paris attacks, the Dagens Nyheter newspaper reports.

"We have received specific information, and decided that we need to take action within the framework of our counter-terror operations," SAPO chief Anders Thornberg said in a media statement.

Level four indicates a "high probability of people with the intent and capability to carry out an attack", the paper adds.

Reuters has just filed an update quoting US military sources as saying there have been 16 further strikes on IS targets in Iraq by US and allied forces and 13 in Syria.

People close to the Gare du Nord train station have been tweeting on the situation there after a security scare:

The BBC's Europe editor tweets that prosecutors will provide updates on today's events in France at 18:00 GMT tonight.