TOKYO - Three more people have been found dead in southwestern Japan following floods and mudslides triggered by torrential rain, raising the death toll to at least 22.

In Kagoshima prefecture on Kyushu island, two men aged 45 and 57, along with a 65-year-old woman, were killed by mudslides, a local police officer said Sunday, adding that another person was still listed as missing.

"The rain is not as heavy as before for now, but police and rescuers are ready should more mudslides occur," he said, noting the national weather agency was forecasting more rainfall overnight and into Monday morning.

The heavy rain, caused by a seasonal front, has washed out the country's southwest, with Kagoshima and Miyazaki prefectures recording 1.2 meters (four feet) of rain since the storms began last week, the agency said.