The cause of the fire was not known but a fire investigator was at the scene this morning.
Emergency services were alerted to the vegetation fire about 12.30pm yesterday, after it appeared near Symes Rd, above State Highway 8 in the Fruitlands area, south of Alexandra.
The fire quickly moved south along the hillside, burning on more than one front.
A plume of smoke stretched towards the Teviot Valley by mid-afternoon yesterday.
By 2pm, police had started alerting farms and dwellings in the area, but no evacuations were required.
At its peak, 18 firefighters, three appliances, a water tanker and a helicopter were at the scene.
- The Otago Daily Times contributed to this