Gatwick, Paris and Frankfurt airports increase security levels after two explosions hit Brussels check-in area.
No links to extremism yet established but ISIS suspects remain at large in Belgian capital.
Shots were fired and Arabic was shouted before the blasts at Zaventem airport, according to reports.
Ankara would take back all illegal migrants who cross to Greece in return for the EU taking in thousands of Syrian refugees from Turkey.
Police have also detained two other suspects linked with the Paris attacks in November.
Salah Abdeslam is suspected of helping to equip the Paris gunmen and suicide bombers.
The Republican presidential candidate has managed to annoy another European city.
The former British leader said the battle against radical Islam is a "global struggle."
Is the former firebrand a capitulator to Brussels or a master tactician?
The eastern European country's Foreign Ministry says the comments were misinterpreted.
Authorities on Wednesday called off the traditional New Year's Eve fireworks display in Brussels.
Federal prosecutors said two people suspected of plotting an attack in Brussels on New Year's Eve had been arrested.
On Sunday evening police raided a building near the fashionable Dansaert district of central Brussels.
The European Union is set to agree a six-month extension of its economic sanctions on Russia on Friday.
The E.U. mustn't miss a historic opportunity for change in the Middle East.
Turkish Europe Minister says bloc has agreed to open talks on economic policy next month.
Schools and the metro have reopened in the Belgian capital.
Salah Abdeslam, suspected gunman in the Paris attacks, remains at large, Belgian authorities say.
Authorities put Brussels on maximum alert, closing the metro system, along with museums, shopping centers and other public spaces.
The operation focused on friends and family of suspect Bilal Hadfi
The search continued for Salah Abdeslam and others thought to be responsible.
On Friday, the Brussels resident blew himself up in Paris on orders from ISIS.
The EU could lift visa restrictions for Turkish travelers.