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 northeastern Japan.

Holding "No Nukes" signs, people gathered at Yoyogi Park for a rally Saturday, Feb 11, including Nobel Prize-winning writer Kenzaburo Oe.

The protesters then marched peacefully through the streets demanding Japan abandon atomic power, AP reported.

Last year's tsunami in northeastern Japan destroyed backup generators at Fukushima Dai-ichi power plant, causing multiple meltdowns and setting off the world's worst nuclear disaster since Chernobyl.