PRESQUE ISLE — Police say a man who was shot over the weekend after approaching an officer with a knife has died from his injuries.

WABI-TV reports Eastern Maine Medical Center officials informed police that 29-year-old Derek Sam of Presque Isle died early Tuesday.

The confrontation Saturday night started with police responding to a report of an erratic motorist. They say first responders found Sam armed with a knife, which he refused to drop.

The police chief says an officer tried to use a stun gun but it malfunctioned, and that the officer fired when Sam continued to approach with the weapon. The attorney general’s office is investigating the shooting.