Japan's welfare ministry will confirm the whereabouts of some centenarians, after two people registered as Tokyo's oldest man and woman were found to be dead or missing.
Welfare minister Akira Nagatsuma told reporters on Tuesday that it is important for the government to have accurate information on senior citizens.
Nagatsuma said the ministry will confirm the whereabouts of people 110 years old or over, as there are more than 40,000 centenarians in Japan.
Last week, a man registered as the oldest in Tokyo, at 111 years, was found dead in his house.
On Monday, a 113-year-old thought to be Tokyo's oldest woman was found not to be living in her registered residence.