According to the first data, the person tried to cross the tracks despite the fact that the barriers had been lowered, Infrabel spokeswoman Jessica Nibelle said.
The collision has disrupted train traffic on line 40 between Bressoux and Visé. The duration of the service interruption is not yet known. The NMBS railway company operates shuttle buses between Bressoux and Visé.
The emergency services and an Infrabel team are on site.