Two loud explosions reportedly shook the building sending terrified passengers fleeing for their lives shortly after 8am local time.
Shots were fired and words in Arabic shouted before the blasts were heard near the American Airlines check-in desk in the departure hall, a Belgian news agency reported.
The airport is said to be on “lock down” with all flights cancelled and rail traffic towards the Belgian airport suspended.
Hundreds of people can be seen in a video fleeing the airport, as smoke billows from the building.
A third explosion has now hit the city at a Metro station near EU buildings after two blasts at Brussels Airport, it’s reported
The blasts at Brussels Airport were a suicide attack, Belgian media are reporting.
At least 11 people have reportedly died in the attack and several more have been injured.
Two explosions were heard at the airport shortly after 8am local time.
The bombs were allegedly detonated close to the American Airlines check-in desk.
An American Airlines spokesman said: “We are aware of an incident at the Brussels airport departure hall and are taking care of our customers, employees and contractors. At this time, all of our employees and contractors are accounted for with no reported injuries.
“American Airlines flight 751 has been cancelled for today. When operations at the airport resume, we will re-accommodate our customers.”
The airport is currently in lockdown and flights are being diverted.
Source: Mirror Uk