A senior official of Japan's Reconstruction Agency, which deals with the rebuilding of areas damaged by the 2011 earthquake and tsunami, has verbally abused some citizens groups and Diet members over the online social networking site Twitter, government sources said Thursday.
The official -- identified as Yasuhisa Mizuno, 45, who is in charge of supporting victims of the nuclear disaster at the Fukushima Daiichi power plant -- admitted posting the messages.
Chief Cabinet Secretary Yoshihide Suga said in a press conference that reconstruction minister Takumi Nemoto is expected to take punitive action against Mizuno, saying, "(Mizuno's) actions have infringed on the Public Service Law."
After attending a rally in March sponsored by a citizen' group that supports sufferers of the March 2011 earthquake and tsunami as well as the subsequent nuclear disaster, Mizuno wrote on Twitter that he "attended the rally only to be denounced by left-wing hecklers."
Mizuno also wrote slanderous messages against unidentified lawmakers, such as "My head swarmed after hearing a certain minister tell lies compulsively," the sources said.
Nemoto, speaking at the House of Representatives, said Mizuno's Twitter messages were "inappropriate as a national government official" and he offered an apology.
Mizuno joined the Reconstruction Agency in August 2012 after serving as vice mayor of the city of Funabashi, Chiba Prefecture, a city just east of Tokyo with a population of some 600,000.
The Reconstruction Agency was established in February 2012 as a government organization to handles matters linked to recovery efforts from damage caused by the March 2011 earthquake and tsunami as well as the subsequent nuclear disaster at the Fukushima Daiichi power plant operated by Tokyo Electric Power Co.