The United States says it "strongly condemns" the continued detention of Burmese human rights activist Su Su Nwe.
The Burmese Supreme Court refused summarily Wednesday to hear an appeal of Su Su Nwe's case.
She was sentenced to 18 months in prison in October 2005 on charges brought against her after she sued village officials for imposing forced labor.
A State Department spokesman Sean McCormack noted Friday that the National League for Democracy member's health is deteriorating in prison.
He said that her case highlights the "brutality" of the Burmese regime, as well as its disregard for democratic principles and fundamental human rights.
The spokesman called on Burma to release Su Su Nwe, as well as the rest of the 1,100 political prisoners being held.