Japan on Sunday marked the first anniversary of the devastating earthquake and tsunami that killed thousands and set off a nuclear crisis in the country.

Tributes were paid to the 15,800 victims; another 3,300 people are still listed as missing.

A 7-year-old girl, Wakana Kumagai, who lost her father in the tsunami, revisited the spot where her house in Higashimatsushima used to stand. Kumagai's father Kazuyuki called his wife Yoshiko just after the March 11, 2011, earthquake to tell her to take the children to Omagari Elementary School which was serving as a shelter. Yoshiko said his dead body was found near the shelter four days later.

See the first anniversary of the disaster through the eyes of a child.