The death toll continues to rise but at least 128 people have been confirmed dead as a result of multiple acts of terrorism across the city last night.
It comes less than a year after 11 people were gunned down at Charlie Hebdo offices in January, and Noel Le Graet concedes that he is worried about next summer's France-based competition.
He told L'Equipe: "For the Euro, there was already a big worry. Today it's obviously even stronger."
According to reports, three explosions, believed to be suicide bombers, were heard outside Stade de France during France's 2-0 win over Germany.
Later in the evening, many more people were killed inside a concert hall where they were being held hostage by men with guns and explosives.
The Islamic State has claimed responsibility for the attack, according to Reuters.
France's friendly with England on Tuesday has reportedly been postponed.