The Belgian Royal couple visit victims a day after the Brussels attacks on March 23, 2016 at the Erasme hospital (Erasmusziekenhuis) in Brussels.

King Philippe of Belgium and Queen Mathilde of Belgium walk past soldiers after paying a visit to victims at Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station. About 20 people were killed on the metro and 14 at the airport in the rush-hour assaults, which came just days after the arrest in Brussels of the main fugitive suspect in November's gun and bomb rampage in Paris.



King Philippe of Belgium and Queen Mathilde of Belgium shake hands with a soldier after visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

King Philippe of Belgium and Queen Mathilde of Belgium shake hands with a soldier after visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

King Philippe of Belgium and Queen Mathilde of Belgium walk past soldiers after paying a visit to victims at Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

Queen Mathilde of Belgium (R) and King Philippe of Belgium (L) arrive during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.

King Philippe of Belgium attend a meeting with medical staff as the Belgian Royal couple visit victims a day after the Brussels attacks on March 23, 2016 at the Erasme hospital (Erasmusziekenhuis) in Brussels.

King Philippe of Belgium (R) and Queen Mathilde attend a meeting with medical staff as the Belgian Royal couple visit victims a day after the Brussels attacks on March 23, 2016 at the Erasme hospital in Brussels. Two suicide blasts hit Brussels' Zaventem airport on March 22, 2016 morning followed soon after by a third on a train at Maalbeek station, close to the European Union's institutions, just as rush-hour commuters were heading to work. The triple blasts that killed some 30 people and left around 250 injured was claimed by the Islamic State jihadist group

(L) French Prime Minister Manuel Valls visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

King Philippe of Belgium visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

King Philippe of Belgium visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.



(L-R) French Prime Minister Manuel Valls, Queen Mathilde of Belgium and King Philippe of Belgium during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.

King Philippe of Belgium meets with emergency workers and investigators in the area of the explosion at the Maelbeek - Maalbeek subway station in Brussels, on March 23, 2016, a day after the triple blasts killed some 30 people and left around 250 injured.

Queen Mathilde of Belgium and King Philippe of Belgium arrive during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.

King Philippe of Belgium and Queen Mathilde of Belgium shake hands with a soldier after visiting victims of Brussels attacks in Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

Queen Mathilde of Belgium attends a meeting with medical staff during a visit to the victims a day after the Brussels attacks on March 23, 2016 at the Erasme hospital in Brussels. 

Queen Mathilde of Belgium (L) and King Philippe of Belgium (R) arrive during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.

King Philippe of Belgium and Queen Mathilde of Belgium walk past soldiers after paying a visit to victims at Erasme hospital in Brussels, on March 23 2016, one day after the attacks on Brussels airport and at a metro station.

Queen Mathilde of Belgium (L) and King Philippe of Belgium (R) arrive during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.

(L) King Philippe of Belgium and Queen Mathilde of Belgium stand during a meeting with emergency workers and investigators in the area of the explosion at the Maelbeek - Maalbeek subway station in Brussels, on March 23, 2016, a day after the triple blasts killed some 30 people and left around 250 injured. 

Queen Mathilde of Belgium stand during a meeting with emergency workers and investigators in the area of the explosion at the Maelbeek - Maalbeek subway station in Brussels, on March 23, 2016, a day after the triple blasts killed some 30 people and left around 250 injured. 

Queen Mathilde attend a meeting with medical staff as the Belgian Royal couple visit victims a day after the Brussels attacks on March 23, 2016 at the Erasme hospital in Brussels.

Queen Mathilde of Belgium meets emergency workers during a visit to Brussels Airport, in Zaventem, on March 23, 2016, a day after triple bomb attacks at the Brussels airport and at a subway train station killed 31 people and wounded more than 200.