Sri Lanka Police says that the unrest which erupted at the Matara Prison last night (April 22) has now been brought under control.
The unrest erupted when a group of inmates from one of the wards began to protest when prison authorities had attempted to transfer an inmate to another correctional facility.
As a result, prison officials were compelled to fire warning shots into the air in an effort to restore order.
The Police Special Task Force (STF) was also called in and has now been deployed to ensure security outside the facility.