Indonesians mark two decades since Boxing Day tsunami

People play in the water at Ulee Lheue beach which was one of the areas hardest hit by Indian Ocean tsunami in 2004, in Banda Aceh (Achmad Ibrahim/AP)

Two decades after a catastrophic tsunami destroyed her village, Tria Asnani still cries when she recalls how she lost her mother while trying to escape the giant waves.

Now a school teacher, she was only 17 at the time. Her father, a fisherman, never returned home from sea. She does not know how she survived.