Suspected Paris bombing plotter Salah Abdeslam has told investigators that he was planning new operations from Brussels and possibly had access to several weapons, Belgium's foreign minister said Sunday.
Minister Didier Reynders said Abdeslam had claimed that "he was ready to restart something from Brussels, and it's maybe the reality".
Reynders gave credence to the suspect's claim because "we found a lot of weapons, heavy weapons in the first investigations, and we have seen a new network of people around him in Brussels".
Abdeslam, captured Friday in a police raid in Brussels, was charged Saturday with "terrorist murder" by Belgian authorities. He is a top suspect in the November 13 attacks in Paris that left 130 people dead, but is said to have backed out at the last minute.
Speaking to security experts at a German Marshall Fund conference in Brussels, Reynders said authorities had found more than 30 people involved in the terrorist attacks in Paris "but we are sure that there are others".
He urged European intelligence, law enforcement, and border authorities to exchange more information to help track the suspects down.
Interpol also has called on European countries to be vigilant at their borders, saying Abdeslam's accomplices may try to flee after his capture. The international police agency recommended closer checks at borders, especially for stolen passports. Many of those involved in the Paris attack travelled on falsified or stolen documents
Abdeslam's Belgian lawyer, meanwhile, threatened to launch legal action Monday against a French prosecutor, accusing him of breaching the confidentiality of the investigation into the deadly rampage in Paris.
Sven Mary told Belgian public broadcaster RTBF that part of the press conference given on Saturday by Paris prosecutor Francois Molins "is a violation. It's a fault, and I cannot let it go unchallenged."
Molins said Abdeslam, 26, told Belgian officials he had "wanted to blow himself up at the Stade de France" as a suicide bomber, but that he backed out at the last minute.
France is seeking Abdeslam's extradition for trial there, but Mary said he would fight any attempt to hand over his client and that investigators have much to learn from the suspect, who was born in Belgium but has French and Moroccan nationality.
"Salah is of great importance to this investigation. I would even say that he is worth gold. He is cooperating, he is communicating, he is not insisting on his right to silence. I think it would be worthwhile now to give things a bit of time ... for investigators to be able to talk to him," Mary said.
In response, an official in the Paris prosecutor's office said French law allows prosecutors to speak about elements of an investigation. The official spoke on condition of anonymity because they were not allowed to discuss this issue publicly.
Belgian Justice Minister Koen Geens was cautious about how the legal proceedings will unfold against the suspect, but said the kind of extradition procedure being used would limit the possibilities for Abdeslam to appeal.
"It could take two months, two and a half months, and we will not be certain of the result before then," Geens said on RTL television.
The next official step in the legal process comes Wednesday when Abdeslam faces court in Brussels.
The suspect, who could be one of the rare jihadis to face trial and possibly speak during proceedings. He spent his first night in a prison just outside the city of Bruges, western Belgium, on Saturday.
The prison has a special section for high-profile prisoners, with specially trained guards. Cells have double doors and any furniture or equipment is attached to the floor.
Abdeslam was shot in the leg Friday along with a suspected accomplice when they were captured during a massive anti-terror raid in Brussels. He was found at an apartment a mere 500 meters from his parents' home, where he grew up.