The investigation continues Monday night into an afternoon grass fire in Lamb County.
Lamb County, just like Lubbock County, was under a fire weather watch Monday.
Smoke from the blaze, looking like a huge cloud, could be seen all they way here in Lubbock.
The fire started around 3:15 p.m. about four miles west of Spade on Highway 54 near Littlefield.
Sudan, Amherst, and Littlefield fire departments all responded.
Fire officials tell us it was actually two separate fires that joined together as one.
Investigators believe either a cigarette, or someone dragging a chain initially caused the fire, but southwest winds helped fuel it.
Right now, they are asking everyone to be extra cautious.
Deputy Chief Michael Williamson with the Littlefield Fire Department is telling people to, "Be careful with their cigarettes. It's dry and things are gonna burn. Until we start getting some moisture, it's going to be real easy to start fires."
Williamson says around 300 to 500 acres burned Monday afternoon.
It took crews around two hours to put out the fire.
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