The 56-year-old legendary singer, was spotted enjoying a meal in a nearby restaurant at the time of the tragedy in the French city, reported Mirror.
"Suddenly I saw people running, without shouting. By reflex I grabbed the arm of Christian Estrosi, the former Nice Mayor, who was sitting close to Bono," said Anne-Laure Rubi, the owner of the upmarket restaurant, which is a famous celeb nightspot.
As the attack on the Promenade des Anglais became clear, the Irish rocker was eventually rescued by armed officers who led him to the nearby Massena square.