EU interior and justice ministers due to hold a crisis meeting in Brussels
More than 60 people still in a critical condition following the blasts, medical officials say
Two suicide bombers named by prosecutors as brothers Khalid and Brahim el-Bakraoui
Airport blasts killed at least 11 while 20 died in explosion at Maelbeek metro station
So-called Islamic State has said it was behind the attacks
Belgian prosecutor Frederic Van Leeuw says police have found a "bomber's written testament'
Belgian prosecutor Frederic Van Leeuw says police have found a "bomber's written testament'
BBC assistant editor tweets:
Image source, ReutersSalah Abdeslam was arrested in the Brussels suburb of Molenbeek
Getting captured fighters of the group known as Islamic State (IS) to talk is one of the crucial ways in which Western intelligence services have built up the picture of its European network. That is why it is hoped the capture of Salah Abdeslam, one of the suspected leading members of the cell behind the Paris attacks, will provide crucial intelligence on the current state of IS's network and its future plans.
BBC Monitoring
French Prime Minister Manuel Valls has paid tribute to the victims of the bomb attack, external in Brussels' Maelbeek metro station, Belgian public broadcaster RTBF reports. Mr Valls attended Wednesday morning's ceremony together with his Belgian counterpart Charles Michel.
Image source, AFP
Image source, AP
Image source, Bozar Centre for Fine Arts The Bozar Centre for Fine Arts, which is the main venue for the Fantastic Film Festival posted this message on their website
Brussels' Fantastic Film Festival is to go ahead next week despite the terror attacks.
Brussels' Fantastic Film Festival is to go ahead next week despite Tuesday's terror attacks.
Read More
Image source, ReutersPolice operations in Anderlecht - where police arrested a man initially reported to be suspected airport bomber Najim Laachraoui - are continuing. Authorities have now made clear that he was not the man who they detained.
Mr Van Leeuw told reporters Brahim el-Bakraoui's role in the airport explosion was confirmed through DNA evidence, but the second bomber at the airport has not been identified.
Mr Van Leeuw says 31 people are confirmed dead in the attacks and 261 wounded. He confirms that Khalid el-Bakraoui was the suicide bomber at the Maelbeek metro station, where about 20 people died and his brother Brahim was the suicide bomber at Zaventem airport.
The third Brussels suspect is still on the run after his suitcase bomb - containing the biggest charge at the airport - failed to explode, Belgian prosecutor Frederic Van Leeuw says.
Terrorists "will get through" the UK's defences to carry out an attack similar to that in Brussels, former home secretary Lord Reid has told the BBC.
He said: "Politicians ought to be honest with the British people and tell them, 'This will happen.'"
Image source, De TijdEuropean media comment on the Brussels attacks tries to strike a balance between the need to enhance security while also defending basic freedoms.
European media comment on the Brussels attacks tries to strike a balance between the need to enhance security while also defending basic freedoms.
Read MoreLord Reid: 'The terrorists will get through'
The former Home Secretary expects the UK to be targeted again at some point in the future.
The former Home Secretary expects the UK to be targeted again at some point in the future.
Read MoreBrussels attacks: Applause after minute's silence
The Belgian Football Association cancels next week's friendly match against Portugal in the wake of the attacks.
The match was due to have taken place on 29 March in Brussels.
"For security reasons and precaution, the City of Brussels has asked the Belgian FA to cancel the match," it says.
Brussels airport will remain closed on Thursday, its chief executive has said.
"There will be no passenger flights into and out of Brussels airport tomorrow (24 March)," Arnaud Feist said in a tweet on Wednesday.
Image source, AFPThe army is visible around the European Union's government buildings
"The attacks in Brussels epitomise a steadily growing terrorist threat to Europe increasingly shaped by militants linked to so-called Islamic State (IS)," Petter Nesser, author of Islamist Terrorism in Europe: A History tells the BBC.
"The terrorists belong to the new generation of jihadis in Europe, mobilised by the Syria war... the Belgian branch was particularly effective in sending foreign fighters to Syria."
He adds: "Many of the European terrorists now flagged as IS were part of al-Qaeda affiliated networks a short while ago. Al-Qaeda has tried to launch similar operations as those in France and Belgium, without success"
He says more attacks are likely. "With up to 6,000 European fighters in the Middle East, increased terrorist funding, more sophisticated propaganda and recruitment, and communications encryption tools, European security services face enormous capacity challenges."
British Monarchy tweets...
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A suspect arrested in Brussels this morning was not Najim Laachraoui, thought to be one of three men in a CCTV image taken before the Zaventem airport attack, some Belgian media are now saying
The newspaper, DH, which first reported the story, says the man detained earlier on Wednesday in the Anderlecht district had been misidentified.
Police and prosecutors have not commented on the reports and are due to hold a news conference within the next hour.