Two children have died in a car crash on the Bruce Highway south of Mackay The two-car accident happened about 4.30pm at Chelona, about 15km south of Mackay. A Department of Community Services spokesman said two children had died at the scene. A 40-year-old man and a 40-year-old female were taken to the Mackay Base Hospital in a stable condition. Two other adults were also taken to the hospital with minor injuries. A Queensland Police spokeswoman said the road was closed and urged motorists to avoid the area or delay travel.