| Birthday candles on a cake are thought to have caused the fire |
A fire that killed 13 people at a
bar in the French city of Rouen was caused by someone carrying a
birthday cake with lighted candles, police say.
| Those who died were trapped in a room below the bar |
| The heat of the blaze appears to have damaged bottles |
Prime Minister Manuel Valls said in a tweet (in French): "Deep sadness with regard to the tragedy which mowed down 13 young lives. Compassion and support for the afflicted families."
The authorities praised firefighters for the speed of their response. The fire is the deadliest to hit France since a series of blazes in 2005, according to French media.
The country has been on edge after the Nice attack on Bastille Day (14 July), which killed 85 people, and the stabbing of a priest in a church outside Rouen by Islamist extremists on 26 July.
The use of polystyrene insulators is prohibited in public venues in France. Insulation materials including polystyrene have been blamed for previous deadly blazes, including a nightclub fire in Bucharest last year which killed 27, and a fire in a club in Brazil in 2013 which killed 241.
Most of the victims in that blaze, in the city of Santa Maria, died after inhaling toxic smoke produced when ceiling insulation foam caught fire.