This isn't how a summer holiday is supposed to end.<br/> <br />At least 6 people were killed and a dozen seriously injured Friday, after a regional train en route from Paris derailed and hit a station platform at Bretigny-sur-Orge in central France.<br/> <br />(SOUNDBITE) (French) ANONYMOUS PASSENGER IN CRASHED TRAIN, SAYING:<br/> <br />"It felt like we were going over gravel, it was an unusual feeling. And then I saw that the carriage that was in front of me was starting to turn over on the side and my carriage had broken windows. It was very overwhelming."<br/> <br />The national rail operator said the train was carrying 370 people and travelling just as families were heading off to start their summer vacations.<br/> <br />Passengers told local media victims had been crushed or electrocuted.<br/> <br />President Francois Hollande toured the site and said the cause of the crash is under investigation.<br/> <br />(SOUNDBITE) (French) FRENCH PRESIDENT, FRANCOIS HOLLANDE, SAYING:<br/> <br />"The inquiries are underway and as s
