Police have detained one suspect over the Brussels shooting inside a Jewish museum and are looking for a second.
The victims were hit by bullets in the throat and face, said Ine Van Wymersch, spokeswoman for the prosecutor's office.
Van Wymersch said one suspect was detained after he drove away from the museum around the time of the attack.
A second person suspected of being involved apparently walked away from the scene.
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"Our ability to pre-empt or respond to threats will be eroded if we don't keep up with our adversaries."
"You are one of the silence breakers and we all owe you a debt of gratitude."