Belgium is marking the first anniversary of the suicide bomb attacks on the Brussels airport and underground system, which killed 32 people.
More than 300 people were wounded in the attacks, which were claimed by the Islamic State (IS) group.
King Philippe, who was joined by Queen Mathilde and Prime Minister Charles Michel, led a minute’s silence at Zaventem airport.
Commemorations also took place at the Maelbeek underground station.
Sixteen people died at each attack location.
A memorial to the 22 March 2016 attacks is due to be officially unveiled in the Belgian capital’s European quarter.
The commemoration at the airport began with an emotional song from Eddy Van Calster, whose wife Fabienne Vansteenkiste, an airport worker, died in the attacks.
German Lars Waetzmann was about to leave for New York with his wife Jennifer when the attacks happened. He was badly hurt but she died.
“The unthinkable happened,” he said at the commemoration. “What if we had left 10 minutes later? What if we had driven a bit slower? In a split second my world changed. But on that very moment I also started seeing the best in mankind.”
The suicide bombings were Belgium’s worst terror attacks. A year on, Belgium is still on a high state of alert, with soldiers patrolling the streets.
Brussels attacks: First anniversary of bombings marked