Alberta Premier Jason Kenney says it's inadequate that it took an ambulance 30 minutes to get to an 86-year-old Calgary woman who had been attacked by dogs.
Police and paramedics responded on Sunday to the Capitol Hill neighbourhood in the city's northwest and found the injured woman who later died.
Alberta Health Services, which runs emergency medical services, has said the initial 911 call was sent to police based on information provided from the scene.
A neighbour who called 911 has told CTV Calgary she asked for an ambulance and did her best to tell the dispatcher what was going on.
Kenney says Alberta Health Services must get to the bottom of what went wrong to make sure it never happens again.
Health Minister Jason Copping says he has asked the health agency to do a more thorough investigation.