Amazon Indians kidnap officials

Indians release UN rep after authorities agree to study demandsA captive U.N. official and four other hostages were released unharmed Tuesday from a diamond-rich Indian reservation after Brazilian authorities agreed to some of the Indians' demands.

David Martins Castro, a representative of the U.N. High Commission for Human Rights, was blocked from leaving the reservation after meeting Saturday with Cinta Larga Indians to discuss their battle to protect diamond resources. A federal prosecutor and three other people also were held.