The Hawaii County Fire Department is investigating the causes of three brush fires that scorched an estimated 130 acres Wednesday and today in Kau.

The Fire Department said in a news release today that the fires occurred within a 17-hour period in Punaluu along the roadside of Ninole Loop Road, Kamaoa Road, Kaalaiki Road and Highway 11.

No injuries or evacuations occurred.

Twelve county firefighters battled the blaze, which burned “open land” belonging to multiple owners, the Fire Department said.