Paris - The trial opened Monday in the southern French city of Toulouse of the former head of the fertilizer manufacturer AZF, for his responsibility in the 2001 explosion of an AZF chemicals factory that killed 30 people and injured some 2,500.
Also on trial in the worst industrial accident in post-war France is a subsidiary of the oil giant Total, which owned the factory. All the accused face charges of manslaughter.
The explosion of 296 tons of ammonium nitrate on September 21, 2001, was so powerful that it registered 3.4 on the open-ended Richter scale and left more than 70,000 people homeless.