In the aftermath of last night's warning of an "imminent" terror threat in Brussels when OCAM Crisis Center and the government raised the country's terror alert to the highest level, today the escalation continues and the Belgian capital looks like not only a ghost town but something out of a Call of Duty warzone after authorities deployed special forces, and APCs, shut the metro, locked down shopping centers, closed sporting events, and warned the public to avoid crowds, train stations, airports and commercial districts because of a "serious and imminent" threat of an attack.

As Reuters reports, a week after the Paris attacks carried out by Islamic State militants, of whom one suspect from Brussels is at large and said by authorities to be highly dangerous, Brussels was placed on the top level "four" in the government's threat scale after a meeting of top ministers, police and security services.