Hundreds of landless farmers in Brazil blockaded a railway operated by mining giant Vale for several hours... The demonstrators said they were protesting against a hydroelectric dam built by Vale and an energy company that had, they said, displaced more than 2,000 people... The company said the action was "a criminal act of extreme violence", accusing demonstrators of destroying railway signals. Vale said the protesters' demands had no relation to the company and should be resolved by the federal and state governments.