Firefighters’ quick actions stop spread of brush fire near Namakani Paio Campground

A 2-acre brush fire smolders Thursday within Hawaii Volcanoes National Park. (NPS Photo by J.Ferracane/Special to West Hawaii Today)

Firefighters' quick actions kept a Thursday evening brush fire to just 2 acres within Hawaii Volcanoes National Park. (NPS Photo by J.Ferracane/Special to West Hawaii Today)

The cause of a Thursday afternoon brush fire that broke out along Highway 11 in Puna remains under investigation.