#5 of 10 Most Popular News Galleries of 2016: Deadly attacks in Brussels, Belgium
Multiple explosions at two different sites in Brussels -- the airport and a subway station -- have put the Belgian city on its highest terror alert level. There was also an explosion on the rail tracks at the Maelbeek subway station, according to a spokeswoman for Brussels transportation department. 15 people were killed at the explosion in the subway station and an addition 13 people died at the dual explosions at the city’s airport. Belgian transportation officials also confirmed that an additional 55 others were injured at the subway blast, including 10 people in critical condition.