CORRECTION-BELGIUM-FRANCE-ATTACKS

Police stand guard on a security perimeter, as a reported police intervention takes place, in Brussels on November 22, 2015. Brussels will remain at the highest possible alert level with schools and metros closed over a "serious and imminent" security threat in the wake of the Paris attacks, the Belgian prime minister said. Belgian police have launched several operations linked to the "terrorist threat" facing Brussels, which is under a top security alert over fears of Paris-style attacks, a spokesman said. AFP PHOTO / BELGA / LAURIE DIEFFEMBACQ ==BELGIUM OUT== (Photo by LAURIE DIEFFEMBACQ / BELGA / AFP) (Photo by LAURIE DIEFFEMBACQ/BELGA/AFP via Getty Images)