Belgian police reportedly conducted more raids in connection to the Paris attacks, SIA reports.
Without specifying the number of raids, public broadcaster RTBF reported that they were being carried out in the Brussels districts of Molenbeek and Jette.
Molenbeek has been the focus of previous anti-terror operations. Seven people were arrested in the district on Sunday, five of which were released.
Belgium has the highest number of foreign fighters per capita in Europe, according to a UN report issued a year ago.