Police forensics officers investigate a truck and its container where 39 dead bodies were discovered in Grays, Essex, southeast England.<br /><br />Video shows the red Scania tractor unit (the front part of the truck) and white trailer at Waterglade Industrial Park cordoned off by police.<br /><br />Forensics are seen examining the tractor unit.<br /><br />Police said the truck is from Bulgaria and that the 25-year-old driver has been arrested.<br /><br />Local Member of Parliament Jackie Doyle-Price tweeted that “people trafficking is a vile and dangerous business.”<br /><br />It has since been reported by ITV News that the victims were all Chinese nationals.<br /><br />ITV stated: "The 39 people found dead in the back of a refrigerated lorry trailer were all Chinese nationals, ITV News has learned."