Airport worker Geoffroy Lemaitre, who was injured in the bombing, talks to fellow airport workers prior to the start of an ecumenical service for the victims of the Brussels bomb attacks at the Cathedral of St. Michael and St. Gudula in Brussels, Monday, March, 28, 2016. The Belgian Health Minister Minister Maggie De Block says four of those wounded in the suicide bombings last week have died in the hospital, bringing the number of victims of the bombings to 35.

n injured airport worker caries a single candle as she walk in the procession during an ecumenical service for the victims of the Brussels bomb attacks at the Cathedral of St. Michael and St. Gudula in Brussels, Monday, March 28, 2016. The Belgian Health Minister Minister Maggie De Block says four of those wounded in the suicide bombings last week have died in the hospital, bringing the number of victims of the bombings to 35.

A general view of the tributes left for the victims of the recent bomb attacks in Brussels, following heavy rain in the Place de la Bourse in Brussels, Monday, March, 28, 2016. The Belgian health minister says four of those wounded in the suicide bombings last week have died in the hospital.

Two men help re-adjust the tributes left for the victims of the recent bomb attacks in Brussels, following heavy rain in the Place de la Bourse in Brussels, Monday, March, 28, 2016. The Belgian health minister says four of those wounded in the suicide bombings last week have died in the hospital.

Pedestrians walk past shop window displays near the Grand Place in Brussels, Monday, March, 28, 2016. The Belgian health minister says four of those wounded in the suicide bombings last week have died in the hospital, bringing the number of victims of the bombings to 35.

ommuters walk past soldiers on duty at Brussels Central Station as they return to work after the easter holidays in Brussels, Tuesday, March, 29, 2016. The mayor of Brussels, holding special meetings in Paris after deadly attacks on his city, says the European Union's capital can never go back to "normal" again. Yvan Mayeur met with Paris Mayor Anne Hidalgo in the French capital's neo-Renaissance city hall Tuesday for discussions on how Paris reacted to the November attacks.

Pigeons take flight as tourists feed them in the Grand Place in Brussels, Monday, March, 28, 2016. The Belgian health minister says four of those wounded in the suicide bombings last week have died in the hospital, bringing the number of victims of the bombings to 35.