In which country did the notorious 'Kanthan Karunai massacre' take place in 1987?

Kanthan Karunai massacre is the name of a mass murder of approximately 63 detainees held by the rebel group Liberation Tigers of Tamil Eelam (LTTE) on March 30, 1987 in Nallur, Sri Lanka. Most of the detainees held were surrendered youth from rival rebel group Eelam People's Revolutionary Liberation Front (EPRLF), as well few members from People's Liberation Organisation of Tamil Eelam and Tamil Eelam Liberation Organization (TELO) along with two local businessmen.

The massacre is named after the name of a house that the detainees were formerly held but not where they were eventually killed.

On the morning of March 30, 1987 a local area commander of the LTTE, Sathasivam Krishnakumar alias Kittu was attacked with a grenade as he was leaving his girlfriend’s home. Although the attack did not kill him, it wounded him seriously enough to warrant an amputation of one of his legs. Following the attack, Selvakumar Chellasamy alias Aruna, a prominent early member and a regional commander of LTTE reached the house where the detainees were held and is alleged to have killed with an AK-47 all but 2 of the detainees. The estimate of the dead ranges 40 to 63. One of the murdered detainees was later identified as a popular medical officer with EPRLF, Raveendran alias Benjamin from Talawakelle, Sri Lanka.