Brussels airport closed until at least Tuesday

Blown out windows are seen behind as Secretary of State John Kerry arrives to participates in wreath-laying at Brussels Airport in Brussels, Belgium, Friday, March 25, 2016, paying his respect to victims of terrorist attacks that left more than 30 dead at Brussels Airport. Also pictured is Brussels Airport CEO Feist Arnaud, left. (AP Photo/Andrew Harnik, Pool) (The Associated Press)

CAPTION ADDITION TO ADD IDENTIFICATION OF INDIVIDUAL : In this image provided by the Belgian Federal Police in Brussels on Tuesday, March 22, 2016, three men who are suspected of taking part in the attacks at Belgium's Zaventem Airport and are being sought by police. The men on both the left and right are yet unidentified, the man at center has been the identified by the Federal Prosecutors office on Wednesday, March 23, 2016 as Ibrahim El Bakraoui. (Belgian Federal Police via AP) (The Associated Press)

An injured man lays on the floor at a tram stop in Brussels, Belgium, Friday March 25, 2016. Police again raided a number of Brussels neighbourhoods on Friday in an operation a local official said was linked to both the airport and metro bombings and to the arrest in the Paris suburbs of a man who may have been plotting a new attack in France. (S. Kuplan via AP) (The Associated Press)

Brussels airport officials say flights won't resume before Tuesday as they assess the damage caused by twin explosions in the terminal earlier this week.

Authorities have wrapped up their investigation of the crime scene at the airport, and will allow engineers into the building to check its structural safety and information technology systems — and whether any damage can be repaired quickly.

The Brussels Airport Company said Saturday it is "currently studying a temporary solution to partially resume passenger flights, taking into account the new security measures" decided by the federal government.

Brussels Airport handles 23.5 million passengers annually. It links Brussels with 226 destinations worldwide and is served by 77 different airlines.