Japanese are remembering the dead, one year after the earthquake that triggered a tsunami in north-eastern Japan.
A minute's silence will be observed for the estimated 19,000 killed or who remain missing.
Many people are angry at the government's handling of the disaster, and the UN's nuclear watchdog chief has said that "human error" played a significant role in the nuclear crisis.
Many of those affected by the disaster are still trying to piece their lives together.
Al Jazeera's Steve Chao went back to the ravaged community of Kessenuma, in Miyagi prefecture, to speak to survivors.