Oklahoma Prison ‘Tombs’: Underground Cells, Vermin, and Systemic Abuse Exposed June 2026

Prison letters released to the Guardian on June 11, 2026, paint a stark picture of conditions in the Oklahoma State Penitentiary’s underground H Unit. Known to inmates as the “tombs”, the unit comprises windowless, banked cells that give no access to natural light, earning a reputation as a modern‑day dungeon for high‑risk and death‑row prisoners.

In the underground cells, inmates report a succession of violations. Vermin—in the form of mice, snakes and other pests—infest the corridors and sink into food trays, leading to contamination.  The air is described as damp and stale, with water leakage during rain exacerbating unsanitary conditions.  Inmates recount going “50 days without a shower” and months with “power blown off,” leaving them in darkness for the majority of their time.

Physical and sexual violence is frequently cited. In one letter, a prisoner recalls witnessing bloody assaults, with some men “pulled out of cells with blood and waste running down their leg from sexual assault.” Another report details guard brutality: “The guards are putting chilli pepper symbols on their vest as a badge for every inmate that they are spraying with mace and the pepper ball gun.”  The frequency of beatings and rape, along with a reported lack of staff intervention, underscore systematic abuse.

Dr. Sondra Crosby, a torture survivor specialist, voices that deprivation of sunlight is “cruel, inhuman, and degrading treatment” and a form of psychological torture. The lack of natural light disrupts circadian rhythms, leading to mood disorders, depression, and disorientation. Opposing voices, such as the ACLU, link prolonged solitary confinement and darkness to mental breakdown, claiming the practice “exacerbates the mental health harms of solitary confinement.”

The Oklahoma Department of Corrections has labeled the allegations “inaccurate,” emphasizing compliance with state and federal laws. In 2019, the ACLU threatened litigation over alleged cruel conditions; in response, the prison moved many death‑row inmates out of H Unit. However, recent reports show the practice continues, with prisoners still confined to underground cells for extended periods, sometimes serving as disciplinary measures.  There is no national database tracking buried or partially buried prisons, making monitoring difficult.

Against this backdrop, human rights advocates call for immediate reform. The conditions violate basic human dignity and raise questions about the constitutional obligations of prison officials. As these revelations come to light, officials, families, and the public should demand accountability, improved living conditions, and the removal of subterranean sections that continue to inflict physical and psychological harm.

In short, the “tombs” of Oklahoma’s prison system highlight the urgent need for transparency, humane treatment, and systemic change in the United States’ incarceration practices.