Belgian counter-terrorism police are investigating the motives of a suspected suicide bomber shot dead by troops guarding a Brussels railway station after he set off explosives that failed to injure anyone.
"We consider this a terrorist attack," prosecutor Eric Van Der Sypt said, declining to comment on witness accounts that the man had shouted Islamist slogans before detonating what witnesses said were one or two devices in luggage.
Broadcaster VTM quoted Interior Minister Jan Jambon as saying investigators had identified the man but were not releasing his name. A larger bomb failed to go off, VTM said.
Several media outlets ran unsourced reports saying the dead man was 37 and came from Molenbeek, the inner city borough with a big Moroccan population which was home to some of the figures in Islamic State attacks on Paris and Brussels in 2015 and 2016.
Police were searching homes in the neighborhood, media said.
Although no one was hurt, billows of smoke pouring through Central Station and memories of Islamic State attacks in the city last year, and more recently in Britain, France and elsewhere, sent evening commuters racing for cover.
Police halted rail traffic, evacuated the site and cleared streets crowded with tourists and residents enjoying a hot summer s evening in the historic city center between the station and nearby Grand Place, Brussels landmark Renaissance town square.
The Belgian capital, home to the headquarters of NATO and the European Union, has been on high alert since a Brussels-based Islamic State cell organized an attack that killed 130 people in Paris in November 2015.
Associates of those attackers killed 32 people in their home city four months later.
Since then, attacks in France, but also in Germany, Sweden and, most recently, in Britain, have been carried out in the name of the Syria-based Islamist militant group by other young men, many of them locals, raising fears of more violence in a city where almost a quarter of the population of 1.2 million are Muslim.
Witnesses spoke of a man who shouted Islamist slogans, including "Allahu akbar" - God is greatest - in Arabic, in an underground area of the station still busy with commuters making their way home and seemed to set off one or two small blasts.
"ISOLATED ACTS"
Security experts said Tuesday s incident could have been similar to "lone-wolf" assaults carried out by radicalized individuals with limited access to weapons and training. "Such isolated acts will continue in Brussels, in Paris and elsewhere.
It s inevitable," Brussels security consultant Claude Moniquet, a former French agent, told broadcaster RTL.
With Islamic State under pressure in Syria - where Belgium has been the most fertile European recruiting ground for foreign Islamist fighters - he said attacks in Europe could increase, although many would be by "amateurs" doing little harm.
He compared Tuesday s incident to that on Paris Champs-Elysees avenue a day earlier, when a man was killed when he rammed his car, filled with explosive and weapons, into a French police convoy. No one else was injured.
Rail worker Nicolas Van Herrewegen told Reuters that he was heading downstairs toward the underground platforms that serve long-distance and suburban lines running under the city center.
"There was a man shouting, and shouting and shouting," he said. "He was talking about the jihadists and all that and then at some point he shouted: Allahu akbar and blew up the little suitcase he had next to him. People just took off".
He described the man as quite dark and with short hair and said he was wearing a white shirt and black jeans.
Remy Bonnaffe, a 23-year-old lawyer who was waiting on the concourse for a train home to Ghent, said he was startled by an explosion as he listened to music on his headphones.
He took a photograph, which he later posted on Twitter, of flames shooting up from what he thought was a briefcase.
There was a second blast farther away, which he could not see, followed by what sounded like gunfire, prompting him to run.
"I think we had some luck tonight," he told Reuters. "I m happy that no one was injured and that this was basically a failed attempt."
People just feet from the explosion appeared unhurt and he said he saw no obvious damage to nearby walls.
As Prime Minister Charles Michel consulted his security advisers, the national alert was maintained at its second highest level.
Michel, who convened a National Security Council meeting for 9 a.m. (0700 GMT) on Wednesday, tweeted his thanks to the security forces and railway staff for their professionalism and courage.
Mainline trains were running through the station by the morning rush hour, but not stopping. The adjacent metro station was open as normal, the transport authorities said.
