Explosion at Brussels metro during terrorist attack
22 March 2016 Last updated at 14:12 GMT
At least 31 people have been killed and many seriously injured in attacks at Brussels international airport and a city metro station.
The first attack occurred at Zaventem airport at 07:00 GMT, with twin blasts tearing through the departures area.
Another explosion struck Maelbeek metro station an hour later, as Christian Fraser reports.