The Khmer Kampuchea Krom Human Rights Organization has requested from the Vietnamese government permission to see a monk that has been detained since May last year.

Tim Sakhorn, who was defrocked by Cambodia’s Buddhist leadership before his detention, for allegedly fomenting unrest between the countries, was reportedly taken from a Takeo province pagoda and transferred to Vietnam.

Vietnamese authorities have said he was arrested for traveling without proper documentation. He is being held in a prison in An Giang province, officials have said.

Ang Chanrith, executive director of the Khmer Krom advocacy group, said he had written a request to the Vietnamese Embassy to check on Tim Sakhorn’s condition, and to bring him some food.

Vietnamese Embassy officials could not be reached for comment Friday.