Prime Minister Shinzo Abe said Wednesday the impact from accumulating radioactive water at the crippled Fukushima No. 1 nuclear plant has been "under control."

The government will "continue efforts to address the problem with multiple preventive measures," using the world's wisdom, Abe told a plenary session of the House of Representatives.

"The situation has been under control as a whole," Abe reckoned, answering questions from Banri Kaieda, head of the Democratic Party of Japan, about the policy speech Abe delivered Tuesday when the Diet convened an extraordinary session. The DPJ was in power when the Fukushima nuclear crisis started in 2011.