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.

The growth of extreme wildfire activity is being driven by climate change while resources to fight disasters are being diverted to preparations for war.

Officials say the most destructive wildfires ever to hit South Korea are almost contained. The government's announcement Friday comes after rain and cooler temperatures helped fire crew put out the blazes that have killed 28 people and razed vast swaths of land since last week.