Medieval Prisons in Syria with secret underground floors of torture

Recent events in Syria have led to the discovery of a secret underground floor at Sednaya Prison, located near Damascus. This revelation comes amidst the broader context of the Syrian civil war, particularly with the fall of the Assad regime. Footage circulating online, as well as reports from various sources, depict the liberation of prisoners from this previously unknown section of the prison:

Discovery: The underground floor was uncovered as part of the efforts by opposition forces, including the Syrian rebels, to free detainees from one of Syria's most infamous detention centers, known as the "human slaughterhouse" due to its history of torture, forced disappearances, and executions.
Footage and Reports: Visual evidence and firsthand accounts have shown the process of releasing prisoners, with scenes of joy, confusion, and relief among the detainees. The underground facility, described as having multiple floors, was reportedly accessed after overcoming complex locking mechanisms understood only by regime forces.
Conditions: The conditions described in these underground cells align with previous reports of Sednaya's inhumane practices, including severe overcrowding, lack of light, and brutal torture methods. The discovery adds a new layer to the understanding of the extent of the regime's oppressive tactics.