MIDVALE — Unified police officers in Midvale shot and killed a man who may have been armed with a knife early Friday.

The man was later identified as 32-year-old Dustin Pearson of West Jordan.

Officers responded to a report of an armed robbery about 2:20 a.m. near 165 W. 7200 South. A large parking lot to a Sportsman’s Warehouse, which was closed at the time, is at that address.

As officers arrived, they encountered Pearson.

“During the incident, an altercation occurred involving an individual which resulted in one fatality. A knife was recovered at the scene,” according to a statement from police.

An officer-involved critical incident protocol was invoked, which typically happens when there is a fatal police shooting. The incident will be investigated by West Valley police.

This story may be updated.