More than 100 million yen was channeled to two firms run by the eldest daughter of Saitama Gov. Yoshihiko Tsuchiya over a five-year period starting in 1998, sources said Monday.

The daughter, Momoko Ichikawa, 53, was arrested Thursday on suspicion of hiding more than 100 million yen in contributions to her father's political fund-managing body between 1998 and 2002.

Tsuchiya submitted his letter of resignation to the head of the prefectural assembly Monday morning.