The Brussels metro and schools reopened on Wednesday as the Belgian capital edged back to normal after a four-day security lockdown but the hunt went on for militants police fear may mount a Paris-style mass attack.
Troops and armored vehicles outside reopened underground stations -- about half of the network remains closed -- and police outside schools provided a reminder of the threat the government said was so imminent that it raised its alert level on Saturday in Brussels to the maximum, where it remains.
There was less evidence of the raids and searches that have been carried out periodically in the city since two suicide bombers from Brussels blew themselves up on Nov. 13 during the Islamic State attack on Paris. The brother of one of them is still on the run, along with at least one suspected accomplice.
Of more than two dozen people detained in the past 12 days in Belgium, all but five have been released. Police have not reported finding substantial amounts of weaponry which the government says it fears a local jihadist cell could be about to use in a rerun of the violence in France that killed 130 people.