UPDATE - 7:50pm
The CFS says it has contained the grass fire at Cockaleechie, which had burnt about 1500 hectares.
Crews remain on the scene, and the earlier watch and act message is no longer applicable.
Firefighters will be active throughout the evening to extinguish a grass fire at Cockaleechie, which has already burnt about 1500 hectares.
CFS and farm fire units are continuing to respond to a fire which started on Pub Corner Road.
A watch and act message was updated for residents in the area as the fire is burning in an east-northeasterly direction towards Ungarra.
At least 34 resources and six aircraft have been dispatched to the fire ground.
The CFS advises people to take action and anyone who is not prepared is advised to leave now and if the path is clear head to a safer place.
The fire area is spread across an area about 10km long and 1.5km wide with about 1500 hectares burnt.
The Country Fire Service has confirmed a grass fire burning at Cockaleechie has been contained.
CFS firefighters responded just after 1pm to reports of a fire on Pub Corner Road following a burn off that had gone out of control.
At least 12 appliances responded including from Ungarra, Lipson, Tumby Bay and White Flat brigades.
Four water bombers were also dispatched to drop water on the fire area.
Lower Eyre Peninsula firefighters are responding to grass fire burning at Cockaleechie.
The Country Fire Service said crews responded to the fire on Pub Corner Road just after 1pm on Thursday and are actively working to extinguish the blaze.
The fire may be causing a lot of smoke in the area, and members of the community are urged to take care, particularly if they are driving nearby.
People in the area are asked to check and follow their bushfire survival plan, decide on what to do if the situation changes, and look and listen for information.
For updates, please visit the CFS website or phone the Bushfire Information Hotline on 1800 362 361.