Belgian authorities say they foiled a terror attack when they shot a suspect at Brussels Central Station.
Federal prosecutor Eric Van der Sypt said soldiers "neutralised" the suspect immediately after a small explosion there on Tuesday night and "we do not know if the man is still alive or that he is dead".
There are no other casualties
Van der Sypt added that "this incident is considered as a terrorist attack".
Nicolas Van Herrewegen, a station employee, told public broadcaster RTBF that he saw a man shouting in a lower level of the 1930s station, which serves lines running under the city centre.
He then appeared to yell "Allahu Akbar" in Arabic and to detonate something on a luggage trolley. People standing within three metres of the trolley were unhurt, Herrewegen said.
Belgium's Crisis Centre, which monitors security threats in the country, says based on initial information it doesn't see a need to raise the terror threat in the country to the highest level.
Van Wymersch said authorities were on the scene quickly and a person was shot. She says at first sight no one else appears to have been wounded.
Photos posted on social media showed a small fire in the station, which was evacuated along with the main Brussels 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 launched an attack that killed 130 people in Paris in November 2015. Associates of those attackers, four months later, killed 32 people in their home city, including with bombs loaded on trolleys at Brussels Airport.
Combat troops have been a fixture at transport hubs and in the main public areas ever since the Paris attacks.