Tokyo police arrested a former gangster and two gangsters Wednesday on suspicion of attempting to extort money from former Mongolian sumo wrestler Kyokushuzan, police officials said.

News photoYokozuna Asashoryu acknowledges the at Aichi Prefectural Gymnasium after winning the Nagoya Grand Sumo Tournament on Sunday. KYODO PHOTO

The police arrested Naohiko Miyamoto, 62, a former senior member of a group affiliated with the Sumiyoshi-kai crime syndicate, and gangsters Motomi Fujinami, 36, and Shinobu Maki, 36, for allegedly attempting to extort cash from Kyokushuzan, 34, whose real name is Davaa Batbayar, over gold mining rights in Mongolia. The three have denied the allegation, the police said.