BRUSSELS, Belgium (INTELLIHUB) — At least 28 people were killed in terror attacks Tuesday morning that took place in two locations, including the Brussels Airport.

13 of the people were killed at an American Airlines ticketing counter at around 8 a.m., according to reports, after Arabic speaking terrorists exchanged fire with authorities before detonating explosives which sent shock-waves through the terminal.

An additional blast was reported to have killed 15 other people, and took place at a Metro station close to the E.U. headquarters around 9 a.m..

Over 140 have been reported injured.

Military and police took to the streets by hundreds, arresting two suspects about a mile away from the scene.

Firefighters reportedly also located a third unexploded device which authorities are working to disarm.

“The bombings come just a day after the Belgium Interior Minister warned of possible revenge attacks after the arrest of Paris massacre suspect Salah Abdeslam in the city on Friday,” wrote the Daily Mail.

One eyewitness said that he suspects the bomb at the airport was hidden in a suitcase and may have exploded from behind the service counter after being checked in.

Over 200 flights have been diverted in response to the attacks.

GOP front-runner Donald Trump spoke out on the attacks early Tuesday morning, saying:

“We have to be careful, we are not babies, we can’t do this anymore […] we have to be very careful as to who comes into our country or we are going to have problems like you have never seen.”

Additionally President Obama was briefed on the attack ahead of his speech to the Cuban people.

Shepard Ambellas is an activist, journalist, filmmaker, film producer, radio talk show host and the founder and editor-in-chief of Intellihub. Established in 2013, Intellihub.com is ranked in the upper 1% traffic tier on the World Wide Web. Read more from Shep’s World.

Image: Matthew Kenwrick/Flickr