Two people have been charged on suspicion of providing fake documents to a man who helped plan the Paris terror attacks that killed 130 people.
The man and woman, named as Farid K. and Meryem E.B., respectively, were arrested after a house raid in Brussels, the federal prosecutor's office said.
Farid K., who was also charged with "participation in the activities of a terrorist group," has been remanded in custody, while Meryem E.B. was released under "strict" conditions.
Prosecutors said in a statement that the pair are "suspected to have provided Khalid El Bakraoui with the false documents afterwards used in preparation of the Paris attacks."
Bakraoui blew himself up at a Brussels metro station in March of last year.
In a linked attack, his brother Ibrahim and another suicide bomber attacked the Brussels airport. Thirty-two people were killed.
It is believed that Bakraoui rented a safe house in the Belgian city of Charleroi that was used in preparation for the November 2015 attacks in the French capital.
He also rented an apartment under a false name in Brussels' Forest borough where police looking for Paris suspect Salah Abdeslam killed another suspected militant.