Bucharest - Dozens of vulnerable men and boys were kidnapped, chained up, whipped, fed scraps of food and forced into manual labour or fighting for entertainment over an eight-year period in rural southern Romania, prosecutors said on Wednesday.Three men and two boys aged 10-12 were found chained up and rescued by police on Wednesday during searches at the homes of the suspects - members of an extended family.Organised crime prosecutors say they are investigating 40 suspects who they say exploited about 40 people with physical and mental disabilities or who were very poor and made them chop wood, beg or look after animals.A statement said some victims were snatched from railway and bus stations, outside churches or even from their own homes and transported to private homes by members of the group. Some of them performed domestic chores while others were made to transport and sell wood that had been illegally chopped.It said the captives were sometimes held in chains, whipped, beaten and threatened, underfed or made to eat off the ground and coerced into fighting each other for entertainment. They were locked up overnight to prevent them escaping. Some were stripped naked and doused with hot or cold water. There are suspicions some were raped or sexually abused.Valentin Preoteasa, chief prosecutor at the Pitesti office, called the case unprecedented. "It is shocking to hear this in the 21st century," he said.