Brussels, Safar 11, 1437, November 23, 2015, SPA -- Brussels remained on high alert Monday for a third consecutive day, with the subway closed and schools shuttered, dpa reported. "The operation is not over, it has to continue," Interior Minister Jan Jambon told broadcaster VRT, hours after police took into custody 16 terrorism suspects in a major sweep across the Belgian capital. A magistrate will decide later Monday whether the 16 should remain in detention. --SPA 14:09 LOCAL TIME 11:09 GMT www.spa.gov.sa/w