Bend Fire received calls from several residents on Carnelian Way around11 p-m. The fire spread through brush and trees and did threaten several homes.
Crews were able to stop the fire quickly and mopping up took some time because of the steep terrain the fire was contained to about one acre.
The investigation reveals a transient warming fire that got out of control was the cause. The person responsible is lodged in the Deschutes County Jail.
Fire officials want to warn everyone that the fire danger level is extreme right now and to use care with any fire substance, including cigarettes.