A large fire has broken out on the rooftop of a university in the French city of Lyon and firemen are on the scene, the Lyon 1 faculty said on Thursday.
Police and university sources said works had been ongoing on the roof and that a gas bottle exploded, starting the blaze. One person was hurt in the incident, the officials said.
This is the second gas explosion in less than a week following an incident in Paris where three people died and more than 50 were injured.