Authorities in Belgium have launched six raids in the Brussels region linked to Paris suicide bomber Bilal Hadfi.
An official in the Belgian federal prosecutor's office said that the raids were taking place in Molenbeek and other areas of Brussels.
Recommended Videos
The official spoke on condition of anonymity because the investigation is continuing.
Bilal Hadfi has been identified as one of three attackers at the Stade de France stadium. The raids are centering on "his entourage," the official said.
Belgian Prime Minister Charles Michel says he wants to amend the constitution to extend the length of time terror suspects can be held by police without charge.
"All democratic forces have to work together to strengthen our security," Michel told lawmakers.
Meantime, Belgian Prime minister Charles Michel has announced a package of additional anti-terror measures in the wake of the attacks in Paris.
Michel said 400 million euros ($427 million) would be earmarked to expand the anti-terror fight
He told legislators in a special announcement that personnel involved in security would be increased, and said special attention would be paid to eradicating messages of hate.
Michel also called for more international cooperation.
French Prime Minister Manuel Valls is warning that the associates of extremists who targeted France last week could use chemical and biological weapons, as he urged Parliament to extend a state of emergency.
Valls presented a bill extending the state of emergency declared after Friday's attacks for another three months to the lower house of Parliament on Thursday. It goes to the upper house Friday.
Valls said "terrorism hit France, not because of what it is doing in Iraq and Syria ... but for what it is."
He added, "we know that there could also be a risk of chemical or biological weapons."