A 79-year-old Japanese housewife who allegedly clubbed her husband to death in a row over an affair he had four decades ago has been arrested.
Yoshiko Suzuki used a "stick-like object" when she attacked her husband Masaharu, also 79, at their home in the town of Nakai, some 60 kilometres west of Tokyo, a regional police spokesman said.
"My husband lost his job about 40 years ago because of an affair with a woman. We have often quarrelled over this matter," the suspect told investigators, according to media reports.
The couple lived together with their daughter, 43, who was out shopping at the time of the alleged attack, reports said.