<ul><li>Twenty years after the Indian Ocean tsunami, Aceh pays tribute to the victims.</li><li>Thousands of unidentified and unclaimed tsunami victims are buried in mass graves in Banda Aceh.</li><li>The 2004 tsunami, triggered by a powerful earthquake, killed around 230,000 people across multiple countries.</li><li>Infrastructure in Aceh has been rebuilt, and early warning systems have been installed for better preparedness.</li></ul>

20 years later: Aceh pays tribute to victims of Indian Ocean tsunami

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