Sri Lanka’s Negombo Prison Riot Exposes a Crisis of Overcrowding and Impunity

Author: Sheetal Frank

July 17, 2026

HRRC strongly condemns the torture and ill-treatment of prisoners in Sri Lanka. We call on national authorities to conduct independent and impartial investigations into the deaths and abuse taking place in custody, including in prisons and detention facilities. We also call for the protection of prisoners during transfers from Negombo Prison to other prisons, ensuring they receive any required medical care, and for the Human Rights Commission of Sri Lanka to be granted access to all prisons to carry out detailed investigations.

Prisoners board the bus to be transferred to another prison following riots at Negombo Prison in Sri Lanka on July 6 [Image Credit: Lahiru Harshana/Reuters]

A mass riot erupted in Sri Lanka’s Negombo prison on July 5 and 6, leaving 28 people dead, including eight prison officials and 20 prisoners. Over the course of two days,  clashes continued between two rival inmate groups, reportedly triggered by drug trafficking activities at the prison in the coastal town of Negombo, about 32 km north of the commercial capital, Colombo. Rights advocates have argued that overcrowding was a key factor in the riot, as the prison was built to hold approximately 650 inmates but instead held around 2,400 at the time of the riot. Many of the inmates have since been transferred to other prisons.

The United Nations (UN) has called on Sri Lanka to ensure accountability, declaring that  the families of those “killed and injured deserve to know the truth.” The violence has sparked criticism and urgent calls to address structural concerns around detention in Sri Lanka, including lengthy pre-trial detention periods, overcrowding and poor conditions in detention facilities. The UN has also raised concerns about the number of people being detained for drug-related offences, arguing that many of those inmates could benefit from health-centred responses rather than incarceration. 

The UN has also urged Sri Lankan authorities to investigate reports of human rights violations, calling for a prompt, independent and transparent response. They have also requested that unrestricted access be given to the Human Rights Commission of Sri Lanka in Negombo Prison as well as other prisons, including detention facilities where prisoners have allegedly been subjected to torture and ill-treatment. 

Following the incident, local media reported that one inmate was transferred to Boossa High Security Prison and died shortly afterwards from what authorities claimed was a “sudden illness.” Another inmate was transferred to Agunukolapelessa Prison and died the same day. Their deaths have raised serious concerns among Sri Lankan Human Rights groups, who suspect that the transferred prisoners were victims of torture and abuse, said Amnesty International.

Amnesty International has also raised grave concerns about the risk of torture and other forms of ill-treatment towards detainees, including retaliation against the transferred inmates. The organisation has also called for the Sri Lankan authorities to protect all individuals in custody and to investigate the deaths in detention immediately, as well as allegations of torture and other ill-treatment.

Prisoners board the bus to be transferred to another prison following riots at Negombo Prison in Sri Lanka on July 6 [Photo Credit: Reuters/ Lahiru Harshana]

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Glossary

• Accountability - Being responsible for what you do and giving a reason for it.

• Advocates - A group who publicly supports an idea or development, or way of doing something.

• Allegedly - When something illegal or wrong is said to have been done but not yet proven.

• Amnesty International - An organisation that investigates and exposes human rights abuses, calls for justice and defends people's human rights.

• Conduct - Arrange or organise a particular activity.

• Detention - When someone is arrested and put into custody, particularly while awaiting trial.

• Drug Trafficking - A global illicit trade involving producing, manufacturing, distributing, and selling drugs.

• Human Rights Commission of Sri Lanka - An independent commission created to promote and monitor the protection of fundamental rights and ensure compliance by the Sri Lankan state with international human rights standards.

• Ill-Treatment - The act of treating someone badly through violence or neglect.

• Incarceration - To put or keep someone in prison or in a place used as a prison.

• Impartial - Able to judge or consider something fairly without personal interest.

• Impunity - Freedom from punishment or unpleasant results for something that has been done which is wrong or illegal.

• Outcry - A strong expression of anger and disapproval of something made by a group of people or the public.

• Overcrowding - When there are too many people in one place.

• Pre-trial detention - Prisoners are kept in prison during criminal investigations and pending trial.

• Prompt - To make something happen quickly.

• Retaliation - The act of hurting someone or doing something harmful to someone because they have done the same thing to you.

• Riot - When a large group of people behave in a noisy, violent and disruptive way in a public setting.

• Rivals - A person or group going against each other to compete for the same thing or area.

• Structural concerns - Problems within a system that cannot be fixed by addressing individual incidents alone, but require broader reforms to policies and practices.

• Suspect - to have an idea that something is probably true or likely to happen, especially something bad, but without having definite proof.

• Torture - The act of causing physical or mental pain to persuade someone to do something or give information.

• Triggered - To cause something to start.

• United Nations - An international organisation founded in 1945, made up of 193 countries, to keep peace by coming together, discussing problems and finding solutions.