DRAPER -- A Draper police officer has been fatally shot and a man and woman are in critical condition after an early morning shooting Sunday, police said.
Officers responding to reports of shots fired around 6 a.m. found Sgt. Derek Johnson had been wounded, along with the man and woman, Draper City Police Chief Bryan Roberts said at a news conference Sunday.
Johnson was transported to Intermountain Medical Center, where he later died.
The man and woman, whose identities have not been released, are still in critical condition.
Police would not release details about the shooting suspect or how the shooting started. Roberts read a statement at a news conference Sunday morning but did not take questions.
Law enforcement officers from agencies around the Salt Lake City area have set up a police perimeter from 300 East to 1300 East and Pioneer Street to 13800 South.
Police don't believe they have a suspect at large but have asked area residents on Fort Street from Pioneer Road to 13800 South to stay in their homes until further notice, Roberts said.
Draper City Mayor Darrell Smith and members of the City Council appeared at the news conference with Roberts, who appeared visibly shaken.
"This is a tragic day for the Draper City Police Department," Roberts said.
Roberts said Johnson's family members had been notified of his death.
Johnson was the commander of the areas west of Interstate 15 and south of 13800 South, according to the police department's website.
Resident Kris Szelag told The Salt Lake Tribune and the Deseret News that she heard a gunshot and what sounded like a car crash around 5:30 a.m. and saw emergency crews pulling an officer out of his police car and beginning CPR until a medical helicopter arrived and flew him to the hospital.
Szelag says she then saw police with assault weapons and K-9 units patrolling the streets.
Police are expected to release more details at a news conference Sunday afternoon.