Belgian officials say they have apprehended one of the Paris suspects Salah Abdeslam after a shoot-out.
Officials say Abdeslam, who has been on the run since the November attacks, was wounded in the leg as police moved in on a flat in the Molenbeek area.
"We got him" said Theo Francken, Secretary of State for Asylum and Migration, on Twitter (in Flemish).
Abdeslam is a key suspect in the jihadist attacks in Paris which 130 people died. One man - identified as Algerian national Mohamed Belkaid and linked to the Paris attacks - was shot dead during the raid in the southern Forest suburb on Tuesday.
Abdeslam, a 26-year-old French national born in Brussels, had lived in Molenbeek before the 13 November attacks.
Officials said at the time they believed as many as two other suspects may have escaped.