Belgian police issued a wanted notice for a suspect in the bomb attack on Brussels airport today in which at least 34 people were killed.
A CCTV picture of the suspect shows a bespectacled man with a goatee beard, wearing a white jacket and black hat, and pushing a trolley with a large black bag.
Authorities earlier released a grainy picture of the same man alongside two men with dark hair who were also pushing trollies with similar bags.
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Belgian officials said there were two bomb blasts in the main airport hall this morning, at least one of which was a suicide bombing.
A third bomb that failed to explode was found later, a regional governor said.
"Three bombs were brought into the building, of which one failed to explode," Lodewijk De Witte, the governor of Flemish Brabant province, told a press conference at the airport.
He said it was later destroyed in a controlled explosion.