A 41-year-old woman was airlifted by STARS on Wednesday evening after being injured when the ATV she was driving crashed near Clive.
Blackfalds RCMP said in a release that when the woman rolled her ATV she was ejected and landed in a nearby ditch, sustaining serious injuries.
A 35-year-old man who was operating a second ATV and present when the collision occurred is being investigated for refusing to provide a breath sample. Charges are pending. He was not directly involved in the collision.
Speed, alcohol and lack of appropriate safety gear are all being considered as factors in the investigation, RCMP said.