Two women are still fighting for their lives today after they were injured in separate road collisions over the weekend.
They remain in the Northern General Hospital in life-threatening conditions after being airlifted from the scenes.
In the first collision a 21-year-old biker from Sheffield sustained multiple injuries on Friday afternoon.
Police say a black Citroen C4 car left a layby on the A6195 Dearne Valley Parkway and did a U-turn to head south towards Wombwell .
At the same time two motorcycles heading north towards Doncaster were overtaking a line of traffic.
A police spokesman said: “There was a collision in the carriageway involving the Citroen and a Honda motorcycle, while the other motorcycle, a BMW, is believed to have lost control while taking avoiding action.
“The Honda rider, a 21-year-old Sheffield woman, sustained multiple injuries and was airlifted to the Northern General Hospital. “Her condition is described as life-threatening.”
The Citroen driver, a 45-year-old Mexborough man, and the BMW rider, a 23-year-old Sheffield woman, both sustained minor injuries.
On Saturday a female pedestrian aged 78 was hit by a car in North Anston.
A white Ford Transit van emerged from Woodsetts Road and turned right onto The Baulk, heading towards Nursery Road, where it was in collision with the woman, opposite The Cutler pub, at around 1.35pm.
The woman was local to the North Anston area.
Police are now appealing for any witnesses to both collisions to come forward and provide information.
Call 101 quoting incident number 615 of Friday or incident number 621 of Saturday.