Japanese sisters certified as world’s oldest twins at 107

This combination of two photos shows sisters Umeno Sumiyama, left, and Koume Kodama at separate nursing homes in Shodoshima island, left, and Oita prefecture, Japan. (Guinness World Records via AP)

TOKYO — Guinness World Records has certified two Japanese sisters as the world’s oldest living identical twins at 107, in an announcement Monday coinciding with Respect for the Aged Day, a national holiday in Japan.