10.30am: A 13-year-old Emerald girl is in a critical but stable condition in Townsville Hospital after the car she was in went off the road on Gregory Developmental Road near Clermont about 7pm on Friday.
It is believed she received serious head injuries.
Police communications say it is believed the accident was a result of the 16-year-old driver's "inexperience".
An earlier report alleging the younger sister was the driver was incorrect.
The two other occupants, a 51-year-old woman and the 16-year-old on a learner's license, were yesterday in stable conditions in a general ward at Townsville Hospital.
12.05pm: Two sisters aged 16 and 13 were critically injured last night when a car rolled while the 16-year-old was driving near Clermont .
The teenagers were travelling with their mother by car on Gregory Development Road north of Clermont when the vehicle rolled in the single vehicle accident.
The RACQ CQ Rescue helicopter and its crew departed Mackay at 8pm and arrived on scene at the accident 60km south of Belyando Crossing at 9:10pm.
The two teenage sisters were in a critical but stable condition after being ventilated prior to air ambulance transportation.
Their mother was also injured in the crash and was taken to Townsville Hospital on board the EMQ Helicopter, which also attended the scene of the accident.
11am: Three people were seriously injured in a single vehicle crash at Clermont last night.
Around 7pm, the vehicle was travelling north along the Gregory Development Road when it left the road and rolled.
A 51-year-old woman, 16-year-old girl, and a 13-year-old girl were airlifted to the Townsville Base Hospital. They remain in a serious condition.
Investigations are continuing.
Anyone with information which could assist police with their investigations should contact Crime Stoppers anonymously via 1800 333 000 or crimestoppers.com.au 24hrs a day.