CHRONOLOGY-Attacks blamed on Sri Lanka's Tamil Tigers

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Feb 2 (Reuters) - Suspected Tamil Tiger rebels bombed a bus in central Sri Lanka on Saturday killing at least 20 people, the military said.

Here is a chronology of major attacks blamed on the Liberation Tigers of Tamil Eelam (LTTE), fighting for an independent state since 1983:

April 1987 - Car bomb explodes at Colombo central bus station, killing 113 people and wounding scores.

April 1989 - Car bomb explodes in the eastern port of Trincomalee, killing 51 people shopping for traditional new year.

March 1991: Defence Minister Ranjan Wijeratne is among 19 killed when a car bomb is detonated in Colombo.

May 1991 - Former Indian prime minister Rajiv Gandhi is killed in southern India by a suspected LTTE suicide bomber.

Aug. 1992 - The army chief, Lieutenant-General Denzil Kobbekaduwa, is killed in a landmine blast in Kayts, in northern Sri Lanka.

November 1992 - Navy chief Clancey Fernando is killed in a suicide bombing in Colombo.