Sri Lanka deploys troops to Mahara Prison after deadly riot leaves one inmate dead, six wounded

Sri Lanka deployed hundreds of troops and Special Task Force commandos to contain a deadly riot on August 1, 2026, at the overcrowded Mahara Prison. One inmate was killed and six were injured as prisoners set fires and destroyed key facilities. The incident, occurring just a month after a riot in Negombo killed 31 people, underscores a severe systemic crisis in Sri Lanka's prison network, which operates at four times its capacity.

Mahara prison riot

• ▪A riot broke out at Mahara Prison, located just outside Colombo, Sri Lanka, on the morning of August 1, 2026.
• ▪The riot at Mahara Prison began during family visiting hours, with prisoners climbing onto roofs, setting fire to a building, and burning administrative documents.

Sri Lanka prison overcrowding crisis

• ▪Sri Lankan authorities announced plans in July 2026 to convert disused state buildings into prisons to address overcrowding, though they have not yet been commissioned.
• ▪Sri Lanka's prison network holds over 41,000 convicted inmates across 22 facilities that have a combined capacity of about 11,000.
• ▪More than three-quarters of the inmates in Sri Lanka are remand prisoners awaiting trial, with most held in connection with drug offenses.
• ▪Mahara Prison housed approximately 4,100 inmates, which is about four times its intended capacity.

Riot casualties

• ▪A previous riot at Mahara Prison in November or December 2020 resulted in 11 inmates being shot and killed, and nearly 120 others wounded.
• ▪One inmate was killed and six other inmates were wounded and hospitalized during the Mahara Prison riot.

Property damage at Mahara

• ▪Inmates at Mahara Prison completely destroyed the kitchen, the hospital, a newly built rehabilitation building, and vocational training facilities.
• ▪A police curfew was imposed on Saturday night, August 1, 2026, in three surrounding villages to disperse relatives of inmates and was lifted by midday on August 2, 2026.

Military security deployment

• ▪The Sri Lankan Air Force deployed a helicopter and drones above the Mahara Prison complex during the riot to monitor the situation.
• ▪Sri Lanka deployed hundreds of armed forces troops and Special Task Force commandos to restore order and guard Mahara Prison.

Negombo prison violence context

• ▪Following the Negombo and Mahara riots, Senior Deputy Inspector General of Police Sajeewa Medawatta announced increased security at all major Sri Lankan prisons.
• ▪A prison riot in early July 2026 at a facility in Negombo resulted in the deaths of 10 guards and 21 inmates.