Many of those injured will need to have arms and legs amputated, said Etienne Schouppe, the Belgian transport secretary. She said that at least one child had been killed. Train operator SNCB said 250 to 300 people were travelling in the two trains at the time. Both trains were going through Buizingen, a suburb of Halle, when they collided shortly before 8.30am. One train had left Brussels and the other was approaching the city. Although the high-speed rail links used by Eurostar trains were not directly affected, they were closed as emergency services poured into the area, blocking the lines.