Thousands of Japanese joined a march against nuclear power as worries grow about the restarting of reactors idled after the March 11 meltdown disaster in north-eastern Japan.
The rally was attended by 12 000 people, according to its organisers. Police estimated the turnout at around 7 000.
Holding "No Nukes" signs, people gathered at Yoyogi Park for a rally on Saturday, including Nobel Prize-winning writer Kenzaburo Oe.
The protesters then marched peacefully through the streets demanding that Japan abandons atomic power.
The March 11 quake-tsunami disaster left more than 19 000 dead or missing and sparked the Fukushima crisis, the world's worst nuclear accident since the 1986 Chernobyl disaster, on Japan's northeast coast.
Tens of thousands of people were forced from their homes around the plant, located some 220 kilometres northeast of Tokyo, as radiation levels rocketed, with many not knowing when and if they will be allowed to return.