Bob Weighton, aged 111, is set to become the world's oldest man following the death of Chitetsu Watanabe, the previous holder of the title from Japan, who was 112 years old. / VCG

The old man from Britain said he didn't feel happy about the news because "it means someone has died." Weighton is a former teacher and engineer from Hampshire and holder of the title of the oldest man in Britain. / VCG

A spokesperson from Guinness World Records told the BBC that it was currently investigating the title for the oldest living man following the death of Watanabe, who died just days after being awarded a certificate. / VCG