Police in Belgium on Monday released five people who were arrested as part of the investigation into last month's Paris terror attacks, CNN reported.
Belgian police have conducted several raids  in the country, particularly in the Molenbeek district of Brussels where the terrorists are believed to have come from, following the Paris attacks.
Belgium's security services were on the defensive  after the attacks when they were accused of blunders, infighting and worrying leniency towards radicalism that let the perpetrators of the Paris attacks slip under the radar.
A worldwide search is underway for key suspect Salah Abdeslam , 26, who is thought to have been the driver of a black Renault Clio that dropped off three suicide bombers near the Stade de France the night of November 13.