World's oldest man Masazo Nonaka dies aged 113 .

The world's oldest man has died at his home in northern Japan at the age of 113, his family has said.

Masazo Nonaka passed away peacefully in his sleep in the early hours of Sunday, having outlived his wife and three of their five children.

The super-centenarian, who lived in Ashoro on the main Japanese island of Hokkaido, died of natural causes at his hot springs inn, which has been in his family for four generations and is now run by his granddaughter Yuko.

She told Kyodo News: "We feel shocked at the loss of this big figure. He was as usual yesterday and passed away without causing our family any fuss at all."

Mr Nonaka was born on 25 July 1905, years before the First World War began.

He was certified as the oldest living man in the world last year at the age of 112 years and 259 days.

Image: Masazo was with his family when he received his Guinness certificate last year

Upon receiving his Guinness World Records certificate, he revealed the secret to his long life was eating sweets and taking hot baths.

Mr Nonaka was one of around 68,000 people in Japan aged 100 or older.

Sky News.