‘I went towards where the explosion came from and there were people coming out looking very dazed and shocked.
‘The thinking here is that it is some kind of terrorist attack although that hasn’t been verified by any of the authorities here at the airport.
‘Don’t know how the explosion took place, the method if you like. But it certainly seems Brussels airport has been targeted in a terrorist attack.
‘There is a great deal of confusion here. Certainly there are a number of very upset, as you might imagine, very frightened people.’
He added: ‘There are fears that there might be other attackers.’
Eurostar services to and from Brussels have been suspended – and all trains to the airport cancelled which has been closed until further notice.
All public transport – including the city’s metro stations – are also shut with Belgium hiking its terror threat to its highest level following the strikes.