Inokashira Park Zoo in western Tokyo held an event Sunday to mark the 65th birthday of Hanako, Japan's oldest Asian elephant.

Visitors joined zoo staff in celebrating in front of the elephant's play area, providing a birthday treat for the pachyderm, holding quizzes on its feed, and a session in which zookeepers fielded questions from around the country.

On New Year's Day, Hanako matched the record set by Suwako, who died in 2008 at a Kobe zoo, for oldest elephant in Japan.

Since Hanako's actual birthday is unknown, the zoo, situated on the border of the cities of Mitaka and Musashino, marks her down as a year older every Jan. 1.

Hanako arrived in Japan in 1949 from Thailand.