Dutch investigators are at work to establish the cause of a head-on collision between two packed passenger trains in Amsterdam.<br /><br />The crash left scores of people injured, many of them seriously.<br /><br />The accident happened on a busy stretch of track close to Amsterdam's Central Station.<br /><br />Technicians have been at work overnight looking for clues as to how such an accident could happen.<br /><br />...<br />http://www.euronews.net/
