The accident occurred at 5:15 pm local time during set up for the singer's show at Nice's Stade Velodrome. According to TMZ, the roof of the stage fell on to a crane, which then fell on the workers. Reports say that the stage collapsed gradually allowing for many of the workers to escape unharmed. Two of the injured are said to be in critical condition, while the others suffered fractured bones. "I am devastated to have just received this tragic news," said Madonna in a statement. "My prayers go out to those who were injured and their families along with my deepest sympathy to all those affected by this heartbreaking news." The concert, scheduled for Sunday night, has been cancelled.