Sri Lanka's largest mass grave uncovered in Jaffna

Overview

Updated Sep 21

In February 2026, workers extending a cremation ground in Chemmani, in Sri Lanka's northern Jaffna region, hit human remains. By August, archaeologists had exhumed 572 skeletons, including children and infants. It is the largest mass grave ever found in Sri Lanka.

The grave is in a zone the Sri Lankan army controlled after capturing Jaffna from Tamil Tiger rebels in 1995. More than 20 mass graves have been found across Sri Lanka, and none has produced a prosecution. DNA testing of the Chemmani remains has not yet begun.

Why it matters

This could be Sri Lanka's first mass grave to yield identifications and prosecutions — or another that produced nothing.

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Key Indicators

572

Skeletal remains recovered at Chemmani

Largest mass grave ever found in Sri Lanka; includes children and infants.

23,000

People missing from Sri Lanka's civil war

Mostly Tamils, disappeared during the 1983-2009 conflict.

100,000

Estimated deaths in the civil war

Across 26 years of conflict between government forces and Tamil Tiger rebels.

Mass graves found across Sri Lanka

None has led to a single prosecution.

Voices

Curated perspectives — historical figures and your fellow readers.

People Involved

Prof Raj Somadeva

Chief archaeologist of the Chemmani excavation

Preparing interim report for court, due end of September 2026

Harshana Nanayakkara

Sri Lanka's justice minister

Says government is fully cooperating with the investigation

Jeyaruby Jayapalan

Daughter of a man who disappeared in 1996

Awaiting DNA testing for her father

M.A. Sumanthiran

Acting general secretary of ITAK, President's Counsel

Calling for immediate identification and prosecution

Ambika Satkunanathan

Human rights advocate, former commissioner

Calling for an independent, transparent multi-stage process

Gehan Gunatilleke

Commissioner, Human Rights Commission of Sri Lanka

Says evidence suggests unlawful burials and extrajudicial killings

Rory Mungoven

Asia-Pacific chief, UN Office of the High Commissioner for Human Rights

Urging Sri Lanka to seek international help

Organizations Involved

Human Rights Commission of Sri Lanka

Statutory human rights body

Conducted inspections; found likely unlawful burials

Sri Lanka's statutory human rights watchdog.

Office of Missing Persons (OMP)

Independent statutory body

Observing the excavation; little progress on disappearances

Independent body set up in 2018 to investigate disappearances.

University of Jaffna Forensic Department

University department

Holds all recovered remains under court custody

Forensic facility holding the Chemmani remains under court custody.

United Nations Office of the High Commissioner for Human Rights (OHCHR)

International body

Urging international help with identification

UN body urging international forensic help for Chemmani.

Timeline

December 1995 September 2026

8 events Latest: September 20th, 2026 · 2 months ago

Tap a bar to jump to that date

September 2026
BBC publishes report on Sri Lanka's largest mass grave
Latest Publication

International coverage names Chemmani the largest grave site found in Sri Lanka.
September 20th, 2026
August 2026
Excavation completed; 572 remains recovered
Excavation

Third phase ends; remains include children and infants, plus personal items.
August 2026
May 2026
Court-ordered three-phase excavation begins
Excavation

Dig runs 92 days under judicial oversight with OMP observing.
May 2026
February 2026
Workers hit human remains in Chemmani
Discovery

Crew extending a cremation ground uncover bones, prompting an investigation.
February 2026
April 2018
Mannar mass grave discovered
Discovery

More than 350 remains found in Mannar; investigation later proved inconclusive.
April 2018
1999
First excavation finds 15 remains
Excavation

Remains sent to University of Glasgow; two identifications made.
1999
1998
Soldier testifies about mass burial
Testimony

A soldier reports 300-400 bodies buried near Chemmani.
1998
December 1995
Army captures Jaffna from Tamil Tigers
Conflict

Sri Lankan forces take the Jaffna Peninsula from the LTTE after a bloody campaign.
December 1995

Scenarios

International DNA labs identify Chemmani victims

Possible Resolves by End of 2027

Discussed by: Prof Raj Somadeva, M.A. Sumanthiran, UN OHCHR

Samples from Chemmani are sent to recognized international laboratories. A DNA bank is built, matches with waiting families begin, and at least some victims are identified and returned to relatives. This would be a first for Sri Lanka, where no mass grave has produced identifications or prosecutions.

Chemmani investigation stalls like Mannar

Likely Resolves by Q3 2027

Discussed by: BBC News, Tamil Guardian, families of the disappeared

Samples stay in Sri Lanka without adequate lab capacity. The interim report lands, but DNA testing never gets funded. Remains sit in storage, no one is charged, and the grave joins the list of more than 20 others that produced no accountability.

Sri Lanka referred to the International Criminal Court

Unlikely Resolves by Jan 1, 2028

Discussed by: Tamil diaspora groups, UN OHCHR

Families push for an ICC referral. It requires either Sri Lanka's acceptance of jurisdiction or a UN Security Council resolution, and neither appears imminent. The government insists it is cooperating with the domestic investigation, and no ICC action has followed previous graves.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

April 2018

Mannar mass grave (2018)

Workers found more than 350 skeletal remains in Mannar, a former military zone in northwestern Sri Lanka. The grave was also in an area linked to army operations during the civil war.

Then

Investigations proved inconclusive and no one was charged.

Now

Families remain without answers, and the grave became a symbol of the state's failure to investigate.

Why this matters now

Chemmani sits in the same post-war accountability gap. Mannar shows the default trajectory: exhumation, then stalemate.

1995-2003

Srebrenica DNA identification (1995-2003)

After the Srebrenica massacre killed about 8,000 Bosniak men and boys, the International Commission on Missing Persons used DNA matching to identify remains exhumed from mass graves. By 2003, thousands had been identified and returned to families.

Then

Identifications enabled prosecutions at the International Criminal Tribunal for the former Yugoslavia.

Now

The Commission's DNA process became the global standard for identifying mass grave victims.

Why this matters now

Shows what sustained international forensic cooperation can achieve, and the infrastructure Sri Lanka currently lacks.

1990s-2000s

Guatemala Forensic Anthropology Foundation (1990s-2000s)

The Guatemalan Forensic Anthropology Foundation exhumed mass graves from the 36-year civil war, using DNA and dental records to identify victims and support prosecutions.

Then

Survivors gained identification of relatives; some exhumations fed court cases.

Now

Set a precedent that independent domestic forensic work can turn mass graves into evidence.

Why this matters now

Illustrates the two-track path Chemmani could take: independent forensic work enabling both identification and prosecution.