'I will never forget you': School friends leave heartbreaking tributes for girl, 6, hit by car

The devastated school friends of a six-year-old girl killed by an out-of-control car in a Queensland car park have left a series of touching tributes.

Indie Armstrong was waiting at a pedestrian crossing inside Nambour Mill shopping centre car park on Sunday with her older sister Lily, 8, and grandmother Sandy, 57, when an 86-year-old woman lost control of her car and hit them at speed, while in reverse.

Her mother, Emily Armstrong, watched the catastrophic scene unfold but escaped injury. Lily, who suffered a lower limb injury, is in a stable condition at the Sunshine Coast University Hospital while Sandy is in a critical condition in intensive care after undergoing surgery.

Local families rugged up against the cold on Sunday night to attend a candlelight vigil for Indie while flowers, teddy bears and handwritten messages have been left at the site on Monday.

Amongst those tributes were beautiful handwritten notes from Indie’s young friends.

“I will never forget you, I love you,” little Aylah wrote next to drawings of flowers and a rainbow as well as a stuffed toy.

“I love you so so so so so so so so much,” another little one wrote.

Her grieving father, Jason Armstrong, described Indie as his “moon and back” in a moving Facebook tribute.

Her North Arm primary school principal, Kelly Edgar also paid tribute to the little girl and said the entire school was shocked and saddened by her death.

“Indie was an enthusiastic, loving, friendly young girl who will be greatly missed by the North Arm State School community. Our thoughts and sincere sympathies go out to the family, caregivers, friends and loved ones during this difficult time,” Ms Edgar said in a statement.

Witnesses have said the car was “going like a bullet”, and it appeared the elderly driver hit the accelerator instead of the brake.

Support is flooding in for the Sunshine Coast family, with a GoFundMe page set up to cover funeral and medical expenses already attracting more than $40,000 in donations.

Police, who continue to question the driver about the incident, say it’s had a major effect on the first responders.

“It’s such a tragic set of circumstances,” Superintendent Darryl Johnson told reporters.

“It takes its toll on our emergency services and the police are no different; they are feeling it today.”

Paramedic Ryan Hansen was among the emergency services personnel on the scene and gave a sense of the chaos.

“We saw first-hand how distressing it was for the family so I’m hoping the money raised through this goes some way to providing comfort in these difficult times,” Mr Hansen wrote on the GoFundMe page.