YOKOSUKA, Kanagawa Pref. (Kyodo) A 33-year-old newcomer beat the incumbent backed by former Prime Minister Junichiro Koizumi in the Yokosuka mayoral election Sunday — a result seen as a blow to the prospects for Koizumi's son in the upcoming national election.

Former city assembly member Yuto Yoshida defeated Ryoichi Kabaya, 64, who sought re-election with Koizumi's all-out support, and lawyer Masahiko Goto, 49, to become the third-youngest mayor in Japan.

All of the candidates ran nominally as independents.