Belgium's prime minister says this morning's terror attacks in Brussels represent a "black day" for his country.
34 people are now known to have died following three separate explosions in the Belgian capital.
A spokesperson for the city's metro system says at least 20 people have died in a bombing at a station near the EU headquarters.
While two blasts at the city's main airport before that killed up to 14 others.
The death toll is likely to rise.
The Belgian prime minister says there's no information as to whether this morning's killings are related to last week's arrest of the main suspect in November's terror attacks in Paris.
But Charles Michel says today's attacks represent a "black day" for his country.
Kilmihil man Eoin Keane is working in Brussels, five minutes away from the Maalbeek Metro station where one of the explosions took place.
He was walking into work when reports of the first explosion came to light.
A minute's silence was held in the Dáil this morning – Acting Taoiseach Enda Kenny, says the attacks were an attack on democracy.
All flights to and from Zavantem airport have been cancelled until tomorrow morning, however flights through Brussels Charleroi (pron: shar lwa) are running, with some delays at the airport.
Both Ryanair and Aer Lingus are offering refunds and changes to customers.
Ireland South MEP Deirdre Clune is a member of the EU Parliament's Transport Committee.
She expects that if measures are taken internationally to increase Airport security, that will be reflected here too.
At this stage there is no indication of any Irish victims from today's atrocities.
However, the Department of Foreign Affairs says anyone here concerned for family or friends in Brussels can phone 01 418 0200.
