Four killed in Queensland crashes

Four people have died in separate crashes on Queensland's roads on Saturday.

Police say an 86-year-old woman died after the car she was in was hit by a hatchback that had in turn been hit by a utility on Steve Irwin Way at Landsborough at about 5.20pm.

The 67-year-old woman who was driving the car was airlifted to hospital in a serious condition.

At about 8pm on Saturday a 39-year-old man died after his car left Mount Wyatt Road at Collinsville and rolled

At 2am on Saturday a 21-year-old driver died in hospital after his car hit a power pole at Shoal Point Road in Bucasia.

And on Saturday morning a 67-year-old man was killed when his semi-trailer crashed into a culvert and caught on fire on the Bruce Highway at Marmor