UPDATE: Police will conduct a mechanical inspection on a vehicle in which a 16-year-old was killed at the weekend.
The silver Holden sedan veered off Cameby Rd near Chinchilla about 12.15pm Sunday and crashed into a tree.
The Roma high school student, a passenger in the vehicle, died at the scene.
The driver, an Emerald woman called 000 for assistance.
Police informed the family from Chinchilla Base Hospital at about 4:15pm that afternoon.
Police are hoping to speak with the driver about the cause of the crash, after she was airlifted from Chinchilla Hospital to Brisbane in a stable condition.
Chinchilla Police said the two girls were nearly home, returning to a relative's property on Cameby Rd before the incident.
The mechanical inspection of the vehicle will be undertaken in Chinchilla by Friday.
MONDAY 8AM: Friends and family have turned to social media to pay tribute to a teenage girl killed in a horror crash west of Toowoomba at the weekend.
The 16-year-old was a passenger in a sedan which veered off Cameby Rd near Chinchilla about 12.15pm Sunday and overturned.
The female driver, also in her late teens, suffered arm and leg injures.
There has been an outpouring of grief on Facebook.
"Devastating news for all involved. This is so sad. Our thoughts are with you," one person wrote.
"Very very sad!! Thinking of Emily's family..."
"RIP Em, thoughts are with your family and friends. Spread your wings and fly with the other beautiful angels."
"Such sad news - no parent ever wants to go through this. Thoughts with her family - you have many people thinking of you tonight."
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MONDAY 6AM: Two deaths and a car split in two kept emergency services hopping throughout the weekend.
Investigations are under way into a crash near Chinchilla that claimed the life of a 16-year-old girl and left another teenager in a serious condition.
Police were called to the scene on Cameby Rd at 12.15pm yesterday.
The female driver, who called 000 after the crash, was airlifted from Chinchilla Base Hospital about 4pm.
On Friday a farmer was killed at Googa Creek, north of Crows Nest.
The 56-year-old from Sandy Creek was crushed between a ute and a gatepost and was found about 4pm.
Police believe he may have been there for some time.
Police were notified of a serious accident involving a car and pedestrian about 6.30pm Friday in Alderley St in Harristown, near the intersection of Kowald St.
A Queensland Police Media spokeswoman said it appeared the 44-year-old Harristown man had run from the footpath on the south side of the road straight into the path of an oncoming car.
Paramedics transported the man to Toowoomba Hospital in a critical condition. He was later airlifted to Royal Brisbane Hospital in a critical but stable condition.
On Saturday afternoon a teenage girl was airlifted by RACQ CareFlight to the Mater Children's Hospital after crashing a trail bike on a property near Warwick.
She sustained multiple suspected fractures and cuts to her head in the accident.
On Saturday night a 33-year-old man received cuts to his face and a suspected head injury after crashing into a fence in Gatton.
RACQ CareFlight was called to transport the man to Gold Coast University Hospital in a critical condition.
Last night emergency services were called to a two-car crash near Greenmount about 7pm.
Despite a crash scene that spanned about 200m and involved a car being split in two, the five occupants of one car and the driver in the other, escaped with relatively minor injuries.
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