A South Korean man tending a family grave is suspected of sparking one of the ‘unprecedented’ wildfires that ravaged the southeastern part of the country last week, the National Police Agency said Monday.

A 56-year-old man is being investigated in South Korea on suspicion of starting a deadly wildfire that killed 30 people.The man, who has not been named, was performing an ancestral rite by a family grave on a hill in Uiseong county,

South Korean firefighters were able to fully contain the wildfires that have ravaged the southeastern part of the country and left 30 dead, officials said, while authorities began a joint investigation into the cause.