Police officers investigate on the site where a train derailed at a station in Bretigny sur Orge, south of Paris, Saturday, July 13, 2013. France's transport minister says human error did not cause a train derailment outside Paris that left six dead. Frederic Cuvillier said Saturday that around 30 people were still considered injured. In all, nearly 200 people sustained injuries in the initial accident, when four train cars slid toward the station, some falling over.