Sturt Highway closed while crews extinguish fire in van containing chemicals THE Sturt Highway has been closed at Barmera while emergency crews extinguish a fire in a pesticide van containing chemicals. The road is closed in both directions about 150m west of Nookamka Tce for safety reasons while CFS crews extinguish the fire in a pesticide van. Police say nearby residents do not need to evacuate their homes, but are advised to stay inside.