<span style="color: #222222;">Britain has sent documents to Vietnam to help identify some of the 39 people found dead in a truck near London, as fears mount that most of the dead were Vietnamese.<br />'' <br />''Several Vietnamese families have come forward saying they fear their relatives are among the dead after bodies of 8 women and 31 men were found in a refrigerated container in Essex last week in southeast England and originally identified as Chinese.</span><br />'' <span style="color: #222222;"><br />'' Earlier, Vietnam said Britain had sent documents to help with the complicated task of identifying the bodies, many who were believed to be carrying falsified passports.</span><br />'' <span style="color: #222222;"><br />'' The truck tragedy has plunged communities in central Vietnam into mourning, as families desperately wait for news from their missing relatives. Vietnamese media reported that as many as 24 of the victims could be Vietnamese, although officials have not confirmed the number. Central Vietnam has long been a source of illegal migration to Britain for people seeking better lives.<br />''<br />''Vietnamese migrants often work illegally in nail bars or cannabis farms, heavily indebted and vulnerable to exploitations. </span><br />