King Philippe - Filip of Belgium (2nd L) and Queen Mathilde of Belgium meet with medical staff at the 'Campus Gasthuisberg UZ' hospital in Leuven, outside Brussels, on March 24, 2016 during their visit to the injured victims of the Brussels attacks, two days after a triple bomb attack, which responsibility was claimed by the Islamic State group, hit Brussels' airport and the Maelbeek - Maalbeek subway station, killing 31 people and wounding 270 others.
Belgian authorities are seeking a second suspect over the attack on a metro train in Brussels in which one suicide bomber has already been confirmed dead, police sources told AFP on March 24. / AFP / Belga / LAURIE DIEFFEMBACQ / Belgium OUT        (Photo credit should read LAURIE DIEFFEMBACQ/AFP/Getty Images)