A UN human rights envoy has visited prominent political activists held at Burma's notorious Insein jail before departing the military-ruled nation.Paulo Sergio Pinheiro said the detainees included Labour activist Su Su Nway, who was arrested on Tuesday.
His request to meet detained opposition leader Aung San Suu Kyi was refused.
Mr Pinheiro is investigating allegations of widespread abuse during the ruling junta's crackdown following September's anti-government protests.
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