The Calgary Police Service collision reconstruction team is on scene downtown Tuesday morning after a woman was hit by a garbage truck.
Investigators tell CityNews officers were called to 8 Avenue and 5 Street SW just before 6:30 a.m.
The pedestrian was taken to hospital in life-threatening condition, according to police.
The driver stayed at the scene.
Police say 5 Street SW southbound is closed from 6 Avenue SW to 9 Avenue SW and 8 Avenue SW is closed from 6 Street SW to 4 Street SW.
Drivers are asked to find a different route.
This is a developing story.