UPDATE: The 58-year-old Victorian truck driver involved in a horror Cunningham Hwy crash has been charged with two counts of dangerous operation of a vehicle causing grievous bodily harm.
Police say the man was driving west on the Cunningham Hwy when he collided with the rear of a sedan, which was turning into Sandy Creek Rd.
The sedan was driven by Sandy Creek publican Gary Little and his mother Ivy, who is in a critical condition in the PA Hospital in Brisbane.
Police believe their car was thrown into the path of an oncoming truck after it was hit from behind.
The truck driver is due to appear in the Warwick Magistrates Court on April 13.
8AM: SANDY Creek Pub owner Gary Little and his mother Ivy remain in a critical condition this morning after a shock crash on the Cunningham Hwy near Sandy Creek Rd yesterday.
A 58-year-old Victorian man, who was driving one of the B-doubles, has been charged with two counts of dangerous operation of a vehicle causing bodily harm.
He is due to appear in Warwick Magistrates Court on April 13.
8PM: SANDY Creek Pub owner Gary Little and his mother are in critical condition after a horror crash on the Cunningham Hwy this afternoon.
They are among five people involved in the three-vehicle crash that closed the highway at Allan this afternoon.
Mr Little had been driving with his mother when the sedan they were driving in collided with two b-doubles near Sandy Creek Rd at about 2.20pm.
The 65 year old was taken to Warwick Hospital with serious head, chest and pelvis injuries before being flown in a critical condition in a Rescue 500 helicopter to Toowoomba Hospital.
His 88-year-old mother, Ivy, suffered a heart attack on scene but was revived by paramedics before being taken to Warwick Hospital with severe head and chest injuries.
She was flown to the Princess Alexandra Hospital in Brisbane in a critical condition just after 4pm.
Jodie Crowley is a close friend of Mr Little and his mother and said the whole community was shocked by news of the crash.
"Gary's a very friendly much loved person by the whole community and anyone who knows Ivy and loves her just as much," Mrs Crowley said.
"He's a well respected and well loved man and he does so much for the community.
"We just hope the very best for them and everything works out."
Mick West is a regular patron of Sandy Creek Pub and said the accident was tragic.
"It's pretty tragic what's happened he got broken into two weeks ago and he's too good of a bloke for this to happen to him," Mr West said.
"I've known Gary for a few years and he's helped me out over the years he's more than just a publican he's been a good friend.
"He'd do anything for you and he was always up for a chat.
"I really hope everything goes well for him because he's touched a lot of people's lives."
A middle-aged man in the truck that had jackknifed, blocking the highway, was taken to Warwick Hospital with minor injuries.
Another middle-aged man and the driver of the second truck in his thirties were uninjured.
Brad Setch of the Darling Downs Local Ambulance Service Network described the scene as "horrific".
He said a doctor and nurse from Warwick Hospital arrived on scene to help treat those injured.
"It was a horrific scene that was attended by Warwick Ambulance but crews worked to quickly transport the two critical patients," Mr Setch said.
The accident comes just four months after a Brisbane couple were killed in an accident involving a B-Double near the Leslie Dam Rd intersection of the Cunningham Hwy.
Warwick Road Safety Advisory Group chairman Graham Buchner said poor visibility at the Sandy Creek Rd turn-off could have been a contributing factor in the crash.
"There's nothing wrong with the road there the only other thing I can guess lack of visibility on that turn-off," Mr Buchner said.
"The turn-off certainly isn't the best because of the rise and the corner it is a partially blind section and very short distance to be able to see what's coming.
"I can't say whether it was a factor here but people have got to be vigilant while driving."
The highway remains closed while the Forensic Crash Unit are still on scene.
Traffic is being diverted from Sandy Creek Rd and Washpool Rd with an alternative route along Toolburra Plains Rd.
Investigations are continuing.