December 26 marks the 10th anniversary of the 2004 Indian Ocean Tsunami, the deadliest on record, which smashed into 13 Asian and African countries, swallowing up lives and homes and changing the coastline forever.

Reuters photographer Damir Sagolj documented sites hit by the tsunami in Thailand, where over 5,300 people were killed, including several thousand foreign tourists, when the waves swamped six coastal provinces, turning some of the world's most beautiful beaches into mass graves. Indonesia, Sri Lanka, Thailand, India and the Maldives were the worst affected by the 9.15 magnitude earthquake, which left 226,000 people dead or missing and more than half a million homeless.