Belgium is tightening its security Wednesday after a failed bombing by a man shouting "Allahu akbar" at a Brussels train station that put the nation on edge.

He shouted "Allahu akbar" -- God is greatest, in Arabic -- before being shot dead by soldiers on patrol.

Belgian police said an "incident involving an individual" at Brussels Central Station was under control on Tuesday as local media ran reports that a person wearing an explosive belt had been "neutralized."