Belgium has charged a third suspect with participating in a "terrorist group" over a foiled plan to attack France.
Federal prosecutors on Saturday named the suspect as 35-year-old Y A, but gave no further details.
"He [Y A] has been charged with participation in the activities of a terrorist group," the federal prosecutor's office said in a statement.
It added that the development was part of a joint investigation by France and Belgium.
Two others, Abderrahmane A and Rabah M, are also being held in Belgium over the same plot.
The main plot suspect is Reda Kriket, who was arrested near Paris last week after police discovered a large number of weapons and explosives at his home.
Paris prosecutor Francois Molins said "no specific target" had been identified for the foiled attack but that the cache of weapons showed an imminent act of "extreme violence" had most likely been prevented.
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The Netherlands is also detaining a French national for the same attack, and he is currently fighting his extradition to France.
European authorities have been under pressure to increase efforts to eliminate cross-border armed networks after close links emerged between the fighters of the November Paris attacks and last week's suicide blasts at Belgium's airport and a metro station.