Tibetan environmentalist released after serving nearly 15 years in prison

 A prominent Tibetan art collector and environmental activist who was sentenced to prison in 2010 has been released after serving nearly 15 years amid deteriorating health and is expected to remain under strict surveillance, three sources told Radio Free Asia. Karma Samdrub, 56, was arrested by Chinese authorities in January 2010 and sentenced by the Yangi County Court in Xinjiang later that