Chinese authorities have allowed a Tibetan nun who spent 15 years in prison to leave China and fly to the United States.
Phuntsog Nyidron has been out of prison since 2004, but her movements have been restricted and she was only recently able to get a passport.
Tibetan activist groups say Phuntsog Nyidron arrived in San Francisco Wednesday and is to fly on to Washington.
The International Campaign for Tibet says the release appears to be a gesture of goodwill by China ahead of President Hu Jintao's visit to Washington next month.
Nyidron was arrested in 1989 and sentenced to nine years in prison after taking part in a peaceful protest against Chinese rule. Her sentence was extended after she joined a group of nuns and secretly recorded songs about life in prison.