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 the raids were taking place in Molenbeek and other areas of the capital.
Hadfi has been identified as one of three attackers at the Stade de France stadium on Friday. The raids are centring on “his entourage”, the official said.
Earlier Belgian prime minister Charles Michel announced a package of additional anti-terror measures in the wake of the attacks in Paris.
He said 400 million euros (£280 million) would be earmarked to expand the anti-terror fight, and added 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,” Mr Michel told legislators in a special announcement.
He said personnel involved in security would be increased, and special attention would be paid to eradicating messages of hate.