The brush fire that started at Keauhou Ranch on the Big Island Sunday, and later spread to slopes of Mauna Loa is getting bigger. From Tuesday to Wednesday it more than double in size, so far charring more than 3,200 acres of land.

          It's now reached Kipuka Ki, a special Ecological area with one of the rarest old-growth native forests in the world, home to threatened and endangered native plants and animals.

          The cause of the fire is still under investigation.