And that concludes our coverage for this evening, we will be resuming on Thursday morning.

You can still follow the latest updates via the main news story.

As EU interior and justice ministers prepare for Thursday's talks in Brussels to discuss how to deal with jihadist attacks in Europe, the BBC's Katya Adler in the Belgian capital predicts that the meeting will not be an easy one. 

Taking into account a forthcoming referendum in Britain on EU membership and recent strident nationalistic statements by some EU members, our correspondent says the idea of a more unified European response to the jihadist threat is "not going to be very digestible" for some European governments.

BBC's Anna Holligan in Brussels tweets:

Nicolas Henin, the French journalist who was for months held hostage by the so-called Islamic State in Syria, writes in the Guardian newspaper, external that while the Brussels attacks had a lower death toll than those in Paris last November, they have a different significance.

But while Khalid and Brahim el-Bakraoui and, reports say, Najim Laachraoui performed their duty to die as "cannon fodder" for IS, Mr Henin says that the unwillingness to kill himself of another militant - Salah Abdeslam, who has been arrested - represents an opportunity.

Mr Henin says how Europe reacts now will be crucial - but, he says, the omens are not good. Already French President Francois Hollande has, he says, "fallen into the trap" of referring to this challenge as a war.

RTBF is now also reporting that the Rue de la Loi street and two tunnels closed after Tuesday's attacks have now re-opened. 

Earlier, a group of Belgian Muslims brought a message of peace to the centre of Brussels.

Belgium's RTBF public broadcaster has reported that Brussels' metro system will be operating from 07:00 local time (08:00 GMT) to 19:00 only, and access to train stations will be limited.

When Belgian police raided an apartment in the Schaerbeek area of Brussels, linked to the attackers, they found bomb-making materials, including 15kg (33lb) of TATP.

This powerful DIY explosive was also used by terrorists in Paris and in the 2007 London bombings.

What led to the Brussels attacks and are Belgium's security forces able to cope with the Islamist threat?

Image source, PA

Details are continuing to emerge about what happened yesterday, including the identities of the suicide bombers. A manhunt is still underway for a third airport attacker, so far unnamed, whose device failed to detonate.

Here is a comprehensive round up what we know so far - and the suspected links between the Brussels and Paris terror attacks.

Daniel Byman, external, an extremism expert at Georgetown University and the Brookings Institution, writes in the New York Times, external that while the group Islamic State (IS) may be on the defensive in Iraq and Syria, it is lashing out abroad and Europe is emerging as a "key battleground".

Mr Byman says that returnees from Syria and Iraq are linking up with locals, creating a "self-sustaining cycle of violence".

Journalist Kate Kardava was in Brussels airport at the time of the blasts. Photographs she took of the aftermath with her mobile phone have appeared in newspapers all over the world. She tells the BBC about her experience.

An IT programmer from Nottingham - David Dixon - has been missing since the terror attacks in Brussels.

Family friend Simon Hartley-Jones told the BBC that his partner Charlotte Sutcliffe has been searching the city's hospitals for him.

Mr Hartley-Jones describes his friend as an "amazing man who deeply, deeply loves his son".

BBC Monitoring

From BBC Monitoring:

Belgium's RTBF correspondent reporting from Brussels' Place de la Bourse - where a large crowd has gathered to pay tribute to the victims of the attacks - says the square "has taken on the appearance of the Place de la Republique in Paris in the aftermath of the Charlie Hebdo and 13 November attacks".

Image source, AFP

People have been tweeting their tributes to those caught up in the Brussels attacks:

Image source, EPA

On Wednesday night, employees of Brussels' Zaventem airport took part in a "silent walk" to pay tributes to the victims of the attacks.

BBC Monitoring

In its special live coverage of the aftermath of the Brussels attacks, Belgian public service broadcaster RTBF continues to alternate between news updates, studio discussions with security experts and footage showing the crowds gathered in the Place de la Bourse in Brussels to pay tribute to the victims of the attacks. 

Many people lit candles as darkness fell, and Moroccan, Tunisian, Turkish and other flags from all over the world were shown displayed alongside the Belgian flag.

One woman told the RTBF interviewer that she had come with her family in order to express her solidarity and "to find again the former Belgium". Asked what this Belgium meant to her, she said it was a country "in which people used to smile at each other and talk to each other".