Salah Abdeslam is serving a 20-year sentence for his role in the terrorist atrocities committed in November 2015.
Belgian intelligence believes the network may have stored explosives at a garage on a school's premises.
The only surviving suspect of the Paris attacks has refused to answer questions from judges and lawyers.
Mohamed Abrini claimed he only traveled to U.K. for its casinos.
Officials say that the tourism sector in the world's most-visited city is "going through an industrial disaster."
Both countries failed to act on evidence that a cell in France and Belgium planned attacks.
Two men were extradited from Belgium as seven more were sentenced to jail.
Portugal coach Fernando Santos said the player's stature may put the team at risk.
Paris attacks survivor has "the brains of an empty ashtray."
Molenbeek is the neighborhood where Paris attacks suspect Salah Abdeslam was finally arrested.
Paris attacks suspect Salah Abdeslam made unassuming Forest his refuge until firefight.
The lone surviving attacker from the Paris attacks has also changed his mind about fighting extradition.
Molenbeek was the location of Salah Abdeslam's arrest, and Schaerbeek was home to the Brussels airport attackers.
England's football match against Germany in Berlin will go on as planned.
Mohamed Abrini and Najim Laachraoui, both believed to be accomplices of Abdeslam, remain at large.
A bomb disposal unit has also reportedly been training to defend against a chemical or biological attack.
Family, friends and petty criminals helped him evade a manhunt for four months after Paris attacks.
Security services must now prepare to prevent the next attack on European soil, writes RUSI's Raffaello Pantucci.
Salah Abdeslam, the most wanted suspect in the Paris attacks, was wounded in a shootout in the Belgian capital after a monthslong manhunt.
Salah Abdeslam is suspected of helping to equip the Paris gunmen and suicide bombers.