Three men who are suspected of taking part in the attacks at Belgium's Zaventem Airport are shown in a security camera image.
People gather around a memorial in Brussels after Tuesday's bomb attacks. Reuters
A man looks at flowers and messages outside the stock exchange in Brussels on Tuesday. The Associated Press
People walk away from the broken windows at Zaventem Airport in Brussels after Tuesday's explosions. The Associated Press
In this photo provided by Georgian Public Broadcaster and photographed by Ketevan Kardava, a man is wounded in Brussels' airport after explosions Tuesday morning. The Associated Press
In this still image taken from video from RTL Belgium, travelers lie on the floor in a smoke-filled terminal at Brussels' airport. The Associated Press
A still image from video by RTL Belgium shows people being treated in the debris-strewn terminal at Brussels' airport. The Associated Press
In this photo provided by Ralph Usbeck, a woman lies on the floor in a smoke-filled terminal at Brussels' airport. The Associated Press
Rescue workers treat victims outside the Maelbeek underground station. Reuters
In this photo provided by Georgian Public Broadcaster and photographed by Ketevan Kardava, an injured man lies on the floor in Brussels' airport after the explosions Tuesday. The Associated Press
An injured person is evacuated by emergency workers after an explosion in a main metro station in Brussels on Tuesday. The Associated Press
People are evacuated from Zaventem Airport in Brussels after an explosion Tuesday. The Associated Press
In this image taken from TV, victims receive treatment after an explosion in a main metro station in Brussels. The Associated Press
In this photo provided by David Crunelle, an injured woman leaves Brussels' airport after explosions rocked the facility. The Associated Press
Belgian police officers detain a man at the Gare du Midi train station in Brussels. The Associated Press
People stand near Brussels' airport after being evacuated following explosions that rocked the facility. The Associated Press
In this image taken from TV, an armed member of the security forces stands guard as emergency workers treat victims of the blast in a main metro station in Brussels. The Associated Press
Broken windows were left at the scene of explosions at Zaventem airport near Brussels on Tuesday. Reuters
People walk away from the Brussels airport terminal after explosions rocked the facility Tuesday. The Associated Press
Travelers and airport personnel walk away from the Brussels terminal after the explosions. The Associated Press
In this photo provided by Evan Lamos passengers, clamber from a metro carriage after explosions. The Associated Press
Police and rescue teams work outside the metro station Maelbeek in Brussels on Tuesday. The Associated Press
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