The Islamic State group claimed responsibility for attacks on Brussels airport and a rush-hour metro train in the Belgian capital Tuesday that killed at least 30 people, a news agency affiliated to the group said.
The coordinated assault triggered security alerts across Europe and drew global expressions of support, four days after Brussels police had captured the prime surviving suspect in Islamic State's attacks on Paris last November.
A witness said he heard shouts in Arabic and shots shortly before two blasts struck a packed airport departure lounge at Brussels airport. The federal prosecutor said one of the explosions was probably triggered by a suicide bomber.