More than 10,000 demonstrators took to the streets of Tokyo Sunday, calling for an immediate phaseout of atomic energy and railing against Prime Minister Shinzo Abe's stubbornly pronuclear stance.

Almost 300 protests and gatherings were staged nationwide over the weekend, a symbolic gesture as the country prepared to commemorate the second anniversary of the March 11, 2011, quake and tsunami that triggered one of the world's worst nuclear crises.

Protesters warned that the crisis at the flooded Fukushima No. 1 power plant is far from over, with almost 150,000 Fukushima Prefecture residents still displaced and no time frame in sight for their return, even two years after the Tokyo Electric Power Co. facility was staggered by three core meltdowns.