A man is dead in a motorcycle crash in Brisbane's southwest.
Paramedics were called to stage at Redbank Plains Rd in Swanbank shortly before kl. 18 on Sunday.
A spokeswoman from the Queensland Ambulance Service said that a man riding a motorcycle at the age of 30 years had serious injuries. He was proclaimed death on stage.
Police said the accident happened after officials "wrongly tried to catch up" the vehicle.
Motorists were warned on Sunday evening to expect "long delays" for several hours while the police conducted their investigation into the incident. The road has since been reopened.
The Ethical Standards Command examines the circumstances leading to the breakdown.
Fatality follows a two-party collision south of Bruce Highway in Bells Creek just after kl. left eight people hospitalized, including five children.
A spokesman for Queensland Ambulance Service confirmed children aged 1, 2, 5 and 10 were involved in the collision. The fifth child's age is unknown. Three adults were also taken to the hospital.
The spokesman said one of the children was taken to the Lady Cilento Children's Hospital with leg injury while the other patients were treated on the Sunshine Coast.
The accident led southbound traffic to the bank for up to 18km around Palmview and Bells Creek.
Meanwhile, a man is in a critical state after his car lost control and rolled on a country road in Gold Coast Hinterland.
The 69-year-old was the only resident when the car left Mundoolin Connection Rd in Tamborine just before noon. 14 on Sunday, rested on his roof.
The man was taken to the Gold Coast University Hospital with life-threatening injuries.
The forensic crash unit investigates.
A 54-year-old man was also hospitalized after a separate two-collision at Mountain Creek on the Sunshine Coast.
He was taken to Sunshine Coast University Hospital in a stable state.