Disgraced lawmaker Joji Yamamoto, under arrest on suspicion of using public money to help finance his political activities, submitted a letter of resignation Friday through a lawyer to House of Representatives Speaker Tamisuke Watanuki.
The Lower House's Diet Affairs Steering Committee decided later Friday to accept the resignation.
Yamamoto was arrested Monday on suspicion of fraud involving his secretaries' state-paid salaries and resigned from the Democratic Party of Japan, the largest opposition party.