The family of an American detained in North Korea for the past nine months is renewing calls for his release amid growing concerns about his health.
North Korean authorities arrested Kenneth Bae, an American tour operator and Christian missionary, last November, accusing him of "hostile acts" against the government.
They sentenced him to 15 years of hard labor. His sister said his recent letters have alluded to troubling health conditions, including blurred vision. Bae is a diabetic, which could be causing his vision problems.
The family is planning a prayer vigil Aug. 10 at a church in Seattle. They hope to raise awareness of his situation and put more pressure on U.S. authorities to win his release.
Bae is at least the sixth American detained by North Korea since 2009. The others were eventually released.