Fire authorities are battling several fires in the Barkly region, after lightning strikes at the weekend.
A major fire is causing a smoke hazard on the Stuart and Barkly highways near Three Ways, just north of Tennant Creek.
Bushfires NT's Sue Whatley says it is hoped pastoralists will bring the fire under control today.
"Upgrading fire breaks and back-burning and if they've got any creek lines or anything they can use to burn from they'll be doing that," she said.
"Obviously the weather conditions are quite gusty, so it will depend on the weather conditions as to how much back-burning their operations are able to do."