Japan's Kin Narita and Gin Kanie were in good health when they celebrated their birthdays at a party attended by 140 family members and friends on Saturday.

"I still feel young," Kin Narita was quoted as saying in a Japanese newspaper, while younger sister Gin Kanie said: "No one can beat us".

Dynamic duo

The twins, known affectionately as "Kin-san" and "Gin-san", received gifts and congratulations from across the country.

Among the birthday presents were a pair of "Suzumushi" insects called Kin suzu and Gin-suzu.

The cricket-like insects are treasured in Japan for their bell-like sounds.

Kin and Gin, which mean gold and silver, were born to a farming family in central Japan on August 1, 1892.

Younger sister Gin spent a few days in hospital in May due to a respiratory problem but has now recovered. Kin has not been to hospital for several years.

Both live in separate homes in Nagoya, west of Tokyo, but their numerous television and public appearances together have made them national celebrities.