Calgary police are looking to speak to drivers who passed the scene of a hit and run early Sunday near the Calgary Zoo, especially the driver of one vehicle, in particular.
The driver of a silver or white, four-door sedan, is believed to have "vital information that will assist in the investigation," police said in a news release Wednesday.
Police released a photo of the vehicle in hopes the driver would recognize it and come forward.
Police said earlier they believe they've identified the vehicle and driver involved in the hit-and-run collision that injured a pedestrian walking along Memorial Drive at night on the weekend.
The injured pedestrian was taken to hospital in life-threatening condition and was still in serious condition, as of Monday morning, according to police.
The collision happened at about 1:45 a.m. Sunday.
Police say the pedestrian was walking on the south side of Memorial Drive N.E. near the Calgary Zoo exit, and the driver of an eastbound sedan who struck the pedestrian didn't remain at the scene.
Eastbound Memorial between Edmonton Trail and the zoo exit was closed for hours as investigators collected evidence.
Police have not publicly identified the driver they believe is responsible or said whether charges have been laid.
The vehicle believed to have been involved is a grey 2016 Chrysler 300.
Investigators ask anyone who may have information about the collision to contact police at 403-266-1234 or Crime Stoppers at 1-800-222-8477 or www.calgarycrimestoppers.org.