A bomb squad performed a controlled explosion of a bomb belt the suspect had at the Central Station and established a wide perimeter near the city's famed Grand Place square while checking to see if there more hazards, VTM network reported yesterday.
It appeared no one else was injured besides the suspect and the damage from the explosion was limited, Brussels prosecutor's office spokeswoman Ine Van Wymersch told VRT. It was not clear if the suspect survived.
"We do not know if the man is still alive or that he is dead," Van der Sypt added.
Nicolas Van Herreweghen, who works for Belgium's national rail company, said the male suspect was very agitated, yelling about jihadists and then "Allahu akbar," Arabic for "God is great," before blowing up something on a baggage trolley.
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He said the man appeared to be 30 to 35 years of age. The government agency that owns Belgium's railways was warned by a train driver who saw people running across the rail lines inside the station, spokesman Arnaud Reymann told broadcaster RTL.
Brussels police said via Twitter that there was "an incident with an individual at the station. The situation is under control." They asked the public to follow police instructions.
The center that monitors security threats in Belgium says the available information so far doesn't yet merit going to the highest possible terror alert level.
The Central Station is one of the busiest in the nation and soldiers could be seen patrolling there after the explosion. It was evacuated along with the Belgian capital's Grand Place, a major tourist site about 200 meters away.
Belgium has been on high alert since suicide bombers killed 32 people on the Brussels subway and at an airport in March 2016.
There have been incidents involving extremists in Paris and London in recent days, including the attack by a van driver who tried to run down worshippers outside a London mosque.