The recovered letters revealed how the prisoner of war kept his spirits up by carving small wooden toys for the children.

Many human rights organizations are campaigning for the release of political prisoners detained without trial.

The prison guards escorted the new inmate to his cell under a watchful silence.

The prison guard escorted the new inmate to his cell while checking the list twice.

The organization campaigned tirelessly for the release of every prisoner of conscience detained for peacefully expressing their beliefs.

During recess, the children split into two teams and played prisoners' bars until the bell rang.

During long blackouts, many prisoners reported experiencing the prisoner's cinema, a flickering entoptic phenomenon in which colours and indistinct human-like figures appear when the eyes are deprived of visual input.

She slipped the prison ring, carved from a discarded toothbrush, onto her finger with a secretive smile.

The prison officer reviewed the security footage before the morning shift.

The charity collected used prison purses to help fund programs for formerly incarcerated women.