Police said Monday that a couple who had been ice fishing were found dead in their tent in Minami-furano, Hokkaido, in what appears to be a case of accidental carbon monoxide poisoning.
A man fishing on Lake Kanayama at around midnight Sunday noticed a tent that had collapsed, Fuji TV reported. He told police that he looked inside and found a couple lying motionless on the ice.
Emergency services were called to the lake and found the couple, who have been named as Yoshiyuki and Sonomi Tanaka, dead at the scene.
The Sapporo couple, who were aged 50 and 47 respectively, were taken to hospital where doctors said they died of carbon monoxide poisoning.
Officers searching the tent said that fishing chairs were found next to a hole in the ice, alongside an earthen charcoal brazier. It is believed that the couple were fishing for Japanese smelt through the ice and using the brazier for warmth. Police say it is likely the couple failed to properly ventilate their tent, causing a build-up of carbon monoxide.© Japan Today