At least two people died and six were seriously injured Tuesday in the crash of a Polish bus into a ditch near Mulhouse in eastern France, officials said. The bus was carrying 68 people, including three employees, when it crashed on the highway that links France and Germany, Radio France Internationale reported. Sindbad, the Polish travel agency that owns the bus, had chartered the vehicle to another company that runs bus routes to Mulhouse, Cannes, Toulon, Lyon, Marseille and Nice, RFI said. \"We immediately received aid, the rescue teams were there in minutes and medical care was abundant,\" one passenger told Poland\'s TVN24. The cause of the accident was not reported. The bus was lying on its side in a ditch, officials said. Two emergency rescue helicopters were sent to the crash site.