The head of the Tokyo High Public Prosecutor's Office, who has been the focus of intense scrutiny over his close relationship with the administration of Prime Minister Shinzo Abe, submitted his resignation Thursday following a report that he had participated in a game of mahjong while gambling with newspaper employees.

Hiromu Kurokawa, 63, bet money while playing the game with two reporters from the right-leaning Sankei newspaper and one former reporter with the left-leaning Asahi newspaper for several hours on May 1 and 13, according to a report in the Shukan Bunshun magazine published Thursday.

Justice Minister Masako Mori told reporters Thursday that the ministry confirmed the report.