DRONES and drugs flowing into HMP Garth are causing a serious threat to safety, turning the jail into an airport, the inspectorate of prisons reveals.

The watchdog found that the prison is facing major security issues from access to drugs and a breakdown in safety and security, with around a 45 per cent increase in violence and many prisoners needing protection because of drug-related debt.

Prisoners were burning holes in their windows to allow the entry of drones laden with contraband and the smell of cannabis was rife.