Three explosions in the Brussels Airport and Maalbeek metro station kill at least 34 people and wound at least 170 more, according to Belgian media. Belgian federal Prosecutor Frederic Van Leeuw cautions it is too soon to know exactly how many people died in the bombings. The Islamic State of Iraq and the Levant claims responsibility.
Belgium raises its terror alert level to the highest level in the capital Brussels and deploys soldiers on the streets of major Belgian cities such as Brussels, Antwerp and Ghent. As part of the emergency measures, the Belgian government is advising people in the Brussels area to avoid crowded places, which includes concerts, train stations, airports, public transportation, and busy shopping streets, warning of an "imminent threat".
Five people are killed, including the driver, and five are injured when a tourist bus carrying Russian and Ukrainian teenagers plummets off a bridge and rolls down an embankment near Ranst outside of Antwerp, Belgium.