Officers were on a nearby, unrelated call when they heard a crash near 551 West 300 South at around 8:50 a.m.
Salt Lake City Police report that while they immediately rendered aid, the unidentified victim died on scene.
The involved vehicle fled, according to police.
“We are currently looking for a silver 2013 Subaru Impreza station wagon with heavy front-end damage,” Salt Lake City Police say.
For several hours, 300 S between 500 W and 600 W will be closed while the incident is investigated.
If you have any information about the crash, you are asked to contact police at 801-799-3000.