Multiple explosions rocked Brussels airport on Tuesday, the blasts which are believed to have centred on the American Airlines check-in desk killed and wounded "several" people.
Belgian media reported that numerous people had been injured in the airport's departure hall. Police are talking about at least one death, with reports from the scene of 11 or more deaths.
The incident came as the Belgian capital was on a state of high alert following the arrest of Paris terror attack suspect Salah Abdeslam in the city last week.
Belgium's Interior Minister, Jan Jambon, said the country was on high alert for a possible revenge attack following the capture of 26-year-old Salah Abdeslam in a flat in Brussels on Friday.