Several people were killed on Tuesday when two explosions rocked the departures area of the Zaventem airport in the Belgian capital.
The Belgian fire service told local media there were at least several dead and wounded, BBC reported.
The cause of the explosions was not known. The airport is being evacuated and has been closed to flights, BBC said.
The blasts come four days after the capture in Brussels of Salah Abdeslam, the main suspect in the Paris terror attacks in November.
Images on social media showed smoke rising from one of the buildings amid reports of panic as people fled the airport.